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Company History

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  • 2010
  • 2000
  • 1990
  • 1980
  • 1970
  • Establishment

2022

Jul.

Signed a partnership agreement with Kyoto City to build a decarbonized society

Apr.

Concluded an agreement with Shiga Prefecture to ‘connect people and forests’

Joined the global renewable energy initiative RE100

Moved from the First Section of the Tokyo Stock Exchange to the Prime Market

2021

Sep.

Donated ROHM BNCT Center to Kyoto Prefectural University of Medicine

May.

Formulated the medium-term management plan ‘Moving Forward to 2025’

Apr.

Formulated the ROHM Group’s ‘Environmental Vision 2050’

2020

Jun.

Developed 4th Gen SiC MOSFETs featuring industry-leading low ON resistance

Established ROHM’s ‘Management Vision’

Apr.

Announced a ‘Nano’ Power Supply Technology: Nano Cap™ Ultra-Stable Control

2019

Apr.

Acquired a portion of semiconductor device business from Panasonic Corp.

Developed the industry’s first AC/DC converter ICs with built-In 1700V SiC MOSFET

Feb.

First in the world to acquire certification under the Wi-SUN international wireless communication standard

2018

Mar.

Obtained development process certification under the ISO 26262 automotive functional safety standard

Jan.

Announced a ‘Nano’ Power Supply Technology: Nano Energy™ Ultra-Low Power Consumption

2017

Sep.

Developed the industry’s first op-amps featuring a noise-free design

2016

Apr.

Announced ROHM’s proprietary ultra-fast pulse control technology (later named ‘Nano Pulse Control™, becoming one of ROHM’s cutting-edge ‘Nano’ power supply technologies)

Jan.

Opened ‘ROHM Theatre Kyoto’

2015

Jun.

Developed and mass produced the world’s first trench-type SiC MOSFETs

Apr.

Established ROHM Shiga Co., Ltd.
(*Currently ROHM Co., Ltd. Shiga Factory)

Mar.

Developed the world’s first AC/DC converter control IC for SiC drive

2014

Jun.

Established the India Design Center

Apr.

Developed the industry’s smallest ’VML0604’ transistors

Mar.

Developed high power ultra-low-ohmic shunt resistors optimized for current detection in automotive and industrial applications

2013

Acquired certification under the OHSAS 18001 occupational health and safety standard

Sep.

Started mass production of the RASMID® series comprised of the world’s smallest parts utilizing a completely new manufacturing method

Jul.

Decided on naming rights for Kyoto Kaikan Hall to be ‘ROHM Theatre Kyoto’

2012

Oct.

Developed the world’s smallest 0402 size Zener diodes

Mar.

Began mass production of full SiC power modules

Jan.

ROHM Kyoto Ekimae Building received the Energy Conservation Grand Prize ‘Chief of the Agency for Natural Resources and Energy’s Award’

Established the Tsinghua-ROHM Joint Research Center

2011

Apr.

Constructed the Tsinghua-ROHM Electronic Engineering Hall at Tsinghua University (Beijing, China)

Established ROHM Semiconductor India Pvt. Ltd.

2010

Dec.

Started mass production of the world’s first SiC DMOSFETs

May.

Green building achieved through the full installation of in-house LED lighting, high-efficiency AC equipment, rooftop greenery, and more.

Renovated the ROHM Kyoto Ekimae Building.

Began mass production of SiC Schottky barrier diodes

Signed a partnership agreement with Kyoto City to build a decarbonized society

ROHM has also signed a partnership agreement with Kyoto City to build a decarbonized society.
This agreement provides for greater cooperation between the two parties on decarbonization, biodiversity, and improving local resilience, and marks the first time Kyoto has partnered with a company. On June 30, 2022, a signing ceremony was held at Kyoto City Hall, where Mayor Daisaku Kadokawa and ROHM President Isao Matsumoto signed the agreement.

ROHM will continue to promote sustainability management based on its corporate objective and management vision while working to preserve the environment and biodiversity to achieve a sustainable society and maintain sound partnerships with local communities.

Signed a partnership agreement with Kyoto City to build a decarbonized society

Concluded an agreement with Shiga Prefecture to ‘connect people and forests’

ROHM entered into an agreement with Shiga Prefecture to ‘connect people and forests', stipulating that the two parties will work together and cooperate toward achieving a sustainable society in harmony with nature, using Shiga Prefectural Omifuji Karyoku Park (Yasu, Shiga Prefecture) as a practical model.

Concluded an agreement with Shiga Prefecture to ‘connect people and forests’
Signing Ceremony
Mr. Taizo Mikazuki, Governor of Shiga Prefecture (left)
Isao Matsumoto, President and CEO, ROHM Co., Ltd. (right)

Joined the global renewable energy initiative RE100

We have joined RE100 (100% Renewable Electricity)*, an international corporate initiative with the goal of ensuring that 100% of the electricity used in business operations comes from renewable energy sources.

ROHM promotes environmental management both in Japan and overseas based on its Environmental Vision 2050 formulated in April 2021, striving to reduce environmental impact by pursuing virtually zero greenhouse and other emissions by 2050. As one of the specific measures, we announced our medium-term management plan Moving Forward to 2025 in May of the same year, stipulating that all power used in business activities both in Japan and abroad be generated from 100% renewable energy sources (i.e. hydroelectric, geothermal, solar power) by 2050.

*RE100 (100% Renewable Electricity)
An international business initiative organized by The Climate Group in partnership with CDP, operating as part of the We Mean Business coalition. In Japan, the Japan Climate Leaders Partnership (JCLP) has been supporting the participation and activities of Japanese companies as an official regional partner of RE100 since 2017.

Joined the global renewable energy initiative RE100

Donated ROHM BNCT Center to Kyoto Prefectural University of Medicine

ROHM has also donated research facilities and equipment for cancer treatment research.
The newly established Kyoto Prefectural University of Medicine ROHM BNCT Center will be used for research on BNCT (Boron Neutron Capture Therapy), a type of next-generation cancer treatment.

Donated ROHM BNCT Center to Kyoto Prefectural University of Medicine

Formulated the ROHM Group’s ‘Environmental Vision 2050’

While strong guidelines for a decarbonized society have been issued by governments and the international community to achieve carbon neutrality by 2050, such as the Paris Agreement (established to limit global warming to well below 2°C compared to pre-industrial levels), issues such as climate change, resource depletion, and biodiversity loss are becoming increasingly urgent. The Planetary Boundary, which objectively assesses the impact of human activities on the Earth’s systems, reports that ‘climate change’, ‘biodiversity loss’, and ‘chemical pollution’ are already beyond acceptable levels, and it is clear that the negative impact of economic activities on the Earth has already reached a level that threatens the safety of human society.
Underscoring ROHM’s efforts to reduce environmental impact through business activities and products in accordance with its corporate philosophy and environmental policy, ROHM Group Environmental Vision 2050 was set forth in 2021 to demonstrate the passing on of the global environment to the next generation in a better condition. And in addition to establishing three key themes that should be addressed, namely climate change, resource recycling, and coexistence with nature, ‘2030 Targets’ have been established as intermediate steps.

2009

A SiC supplier becomes a ROHM subsidiary.

Market leader Kionix, Inc., becomes a subsidiary of ROHM.

2008

Acquired OKI SEMICONDUCTOR Co., Ltd.

Logo changed (9/17/08) to "ROHM SEMICONDUCTOR" to mark our 50th anniversary.

2007

A Selection of Japanese 78rpm Recording III.

Developed an ultra-compact LED "PICOLEDTM[picoled]" featuring both the smallest volume and area in the world.

ISO/IEC 17025 Accreditation to Laboratory.

2006

A Selection of Japanese 78rpm Recording II.

ROHM Electronics (Shenzhen) Co., Ltd. established.

ROHM Integrated Systems (Thailand) Co., Ltd. established.

Nagoya Design Center opened.

Shenzhen Technology Center opened.

2005

Co-sponsored "Seiji Ozawa Opera Project" in China.

A ROHM Plaza research facility was donated to Kyoto University.

Korea Technology Center opened.

2004

Taiwan Technology Center opened.

Shanghai Technology Center opened.

2003

Co-sponsored "Kyoto Student Festival."

Contribution for Doshisha ROHM Plaza.

ROHM Tsukuba Co., Ltd. established.

ROHM Electronics Trading (Dalian) Co., Ltd. established.

LSI Test Technology Center opened.

2002

Optical Device Research Center opened.

2001

Contribution for Ritsumeikan University ROHM Plaza.

Started forestation project in Australia named "ROHM Forest."

ROHM Co., Ltd. (Shin yokohama) opened.

2000

Co-sponsored "The Opening Concert of Autumn Kyoto Music Festival."

Co-sponsored "Seiji Ozawa Opera Project."

ROHM Semiconductor (China) Co., LTD. established.

Europe Technology Center opened.

1999

ROHM Electronics (Shanghai) Co., Ltd. established.

ROHM Hamamatsu Co., Ltd. established.

LSI Development Center opened.

Kyoto Technology Center opened.

1998

Co-sponsored "New Japan Philharmonic Special" concert, conducted by Seiji Ozawa.

Began "ROHM's Diary of Science of the tales" for company P.R as a newspaper column.

VLSI Research Center opened.

Obtained ISO14001 Environmental Management System Certification.

1997

Published "ROHM's Diary of Kyoto Natural History (Light Report Edition)" CD-ROM.

ROHM Electronics (France) S.A.S. established.

ROHM Electronics (Thailand) Co., Ltd. established.

Yokohama Technology Center opened.

1996

ROHM Electronics (Philippines) Sales Corporation established.

ROHM Electronics Korea Corporation established.

ROHM Wako Device Co., Ltd. established

1995

Published "ROHM's Diary of Kyoto Natural History (Sound Report Edition)" CD-ROM.

Second LSI Research Center opened.

1994

Began "ROHM's Diary of Science of the tales of old Japan" for company P.R as a newspaper column.

Obtained ISO9001 certification.

1993

Hosted "Kyoto International Music Students Festival" (held annually).

ROHM Mechatech Philippines, INC. established.

ROHM Electronics (Malaysia) Sdn. Bhd. established.

A manufacturing plant is established in Tianjin, China (presently RSC).

ROHM Electronics Dalian Co., Ltd. established.

1992

Completely abolished use of specific-fluorocarbons (all companies in ROHM Group)

1991

Established ROHM Music Foundation.

Second Research and Development Center opened.

1990

ROHM Apollo Device Co., Ltd. established.

Began sales of LED message boards.

America Technology Center opened.

1989

Published public relations magazine "ROHM's Diary of Kyoto Natural History II."

Hosted "ROHM's Music Festival with Play Bach."

ROHM Electronics (U.K.) Limited established.

ROHM-Wako Electronics (Malaysia) Sdn. Bhd. established.

A manufacturing plant is established in Philippines (presently REPI).

Liquid crystal process technology established and products marketed.

LSI Research Center opened.

Received PM award (TPM)

Listed on the First Section of the Tokyo Stock Exchange.

1988

Narita Giken Co., Ltd. established.

ROHM Mechatech Co., Ltd. established.

Obtained basic patent of flash memory in the USA.

1987

ROHM Electronics Taiwan Co., Ltd. established.

A manufacturing plant is established in Thailand (presently RIST).

1986

Published public relations magazine "ROHM's Diary of Kyoto Natural History."

Capacitors marketed.

Memory ICs developed and marketed.

Research and Development Center opened (presently LSI Development Center).

Listed on the First Section of the Osaka Stock Exchange.

1985

4-bit and 8-bit microcontrollers using original CPUs developed.

1984

ROHM Amagi Co., Ltd. established.

First in the world to succeed in the practical industrial use of laser diodes with MBE methodology.

1983

Band switching diodes developed and marketed.

Listed on the Second Section of the Osaka Security Exchange.

1982

Digital transistors developed and marketed.

Semiconductor Research Center is completed.

1981

Published "Asian Music" (recorded tapes of all volumes)

ROHM Fukuoka Co., Ltd. established.

Began development of MOS ICs.

Registered company name is changed from Toyo Electronics Industry Corporation to ROHM Co., Ltd.

1980

Zener diodes developed and marketed.

1979

Began "ROHM's Diary of Kyoto Natural History" for company public relations as a newspaper column.

ROHM Electronics Asia Pte. Ltd. (RES DIVISION) established.

Corporate trademark is changed from R.ohm to ROHM.

1977

Rectifying diodes developed and marketed.

1976

Square-plante chip resistors developed and marketed.

1974

ROHM Electronics (H.K.) Co., Ltd. established.

Thermal printheads developed and marketed.

1973

LEDs and network resistors developed and marketed.

1972

ROHM Korea Corporation established.

1971

Transistor developed and marketed.

ROHM Electronics GmbH established.

Started research and development of integrated circuits (ICs) in Silicon Valley.

1970

Published "History of Musical Instruments" (record of all volumes)

Established U.S. subsidiary company in California.

ROHM Logistec Co., Ltd. established.

Computers for processing business data introduced.

1969

ROHM Apollo Co., Ltd. established.

Began development of ICs.

1968

Completed production of diode arrays and diode matrices.

1967

Transistors and switching diode developed and marketed.

1966

ROHM Wako Co., Ltd. established.

In-house Standardization Committee organized.

1965

Published "Visible Music History" (record of all volumes)

Quality control program introduced.

1963

Metal-firm resistors developed and marketed.

1962

In-house production of automatic resistor assembly machine inaugurated.

1958

Toyo Electronics Industry Corporation.

1954

Carbon film resistors developed and marketed.

Toyo Electronics Industry established.

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