Actions for Intellectual Property
Promote intellectual property activities to
support innovation and contribute
to the realization of sustainable growth
Koji Taniuchi
General Manager, Legal & Intellectual
Property Division
This interview was originally published in the ROHM Group Integrated Report 2024.
ROHM’s Medium-Term Management Plan states that reaching net sales of one trillion yen and entering the top 10 manufacturers for power and analog semiconductors is our goal as a major global player, and efforts are underway to focus on “power” and “analog” areas in our intellectual property strategy as well. We must build an intellectual property portfolio that is suitable in terms of both quality and quantity to ensure our competitive advantage in the market in fields of strategic sales growth such as the power device business represented by SiC and the ASSP strategic top 10 products in the IC business. In addition, we will promote the creation of know-how that will become a strength of IDM for the purpose of further increasing productivity and reliability in production areas that underpin sales and income.
To increase our earning power, it is important that we tie patents, know-how, and other forms of intellectual property to sources of added value and competitiveness. At ROHM, we are focusing our efforts on training inventors, particularly young employees, and aim to become a major global player through the continuous creation of inventions.
Patent Strategy to Become a Major Global Player
The strength of the IDM adopted by ROHM is the fact that productivity and reliability can be improved by integrating technologies. The integrated technologies of semiconductor manufacturing consisting of “circuit design,” “layout,” and “process” are our bodies of know-how accumulated over many years and the most important form of intellectual property for ROHM to grow sustainably.
At ROHM, we have been registering know-how in an internal database since FY2016 to utilize it as shared wisdom rather than individual expertise. The number of registered know-how entries is increasing every year with less than 100 entries in FY2017 growing to over 300 in FY2022. The registered know-how is developed into standards, guidelines, and design rules and embedded into mass production workflows, equipment, and tools, which has led to increased reliability and productivity.
In terms of strategy, we are focusing on know-how related to SiC, IGBT*, GaN*, and other power devices and the ASSP strategic top 10 products in ICs to secure our competitive advantage by acquiring patent rights for technological inventions that realize high added value in these areas.
*IGBT: Stands for Insulated Gate Bipolar Transistor, which is a transistor that combines a MOSFET and a bipolar transistor.It has both low on resistance and relatively rapid switching, and it is currently used in a broad range of areas for voltage control of large power
※GaN: Stands for Gallium Nitride, which is a compound semiconductor material used in next-generation power devices. This substance is superior to silicon, which is the material normally used in semiconductors, in its physical properties, and it is starting to be used for its high-frequency properties
Number of retained know-how entries
Increase rate of patents held since FY2019 in ROHM priority areas
Securing and Developing Human Resources to Promote Intellectual Property Strategy
Proactive Filing of Patent Applications for Sustainable Growth
1 Change in the ratio of inventors in their first five years after joining the company calculated based on the number of inventors in 2017
2 Employees at the Head Office