This inventor holds 67 USPTO granted patents and 11 published patent applications and 24 EPO patents, primarily in Power Conversion Devices (CPC class H01L). Top assignees: Hitachi, Ltd., Hitachi Automotive Systems, Ltd., Hitachi Astemo Ltd.. Active years: 1977-2026.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Inventors with similar research interests:
Location History:
- Higashikurume, JA (1977)
- Hitachinaka, JP (2019 - 2020)
- Hitachi, JP (2010 - 2021)
- Ibaraki, JP (2021)
- Tokyo, JP (2016 - 2024)
Company Filing History:
27 out of 42,740 
25 out of 2,028 
15 out of 1,501 
Years Active: 1977-2026
Areas of Expertise:
Title: **The Innovations of Takeshi Tokuyama: A Closer Look at His Patents and Career**
Introduction
Takeshi Tokuyama, based in Hitachi, Japan, is a remarkable inventor known for his extensive contributions to the field of power conversion technology. With an impressive portfolio of 52 patents, Tokuyama has dedicated his career to innovating solutions that enhance the efficiency and effectiveness of electronic devices.
Latest Patents
Among his recent patents, one notable invention is a **Power Conversion Device**. This invention presents a streamlined design that allows for miniaturization, which includes a power module for switching operations, a smoothing capacitor, and a sophisticated circuit board for control. It also features a housing that neatly accommodates both the power module and the capacitor, with innovative fixing members to secure the components effectively.
Another significant innovation is the **Power Conversion Device and Motor-Integrated Power Conversion Device.** This patent addresses the heat management issues associated with semiconductor modules. It describes a mechanism in which heat generated by the semiconductor is transferred and mitigated through a bus bar module, keeping the connected capacitor cool while improving the overall performance of the device.
Career Highlights
Takeshi Tokuyama has made noteworthy strides in his career while working with esteemed companies such as **Hitachi Automotive Systems, Ltd.** and **Hitachi, Ltd.** His experience in these organizations has significantly shaped his expertise and innovation in power conversion technologies.
Collaborations
Throughout his professional journey, Tokuyama has collaborated with talented colleagues, including Kinya Nakatsu and Toshiya Satoh. These partnerships have likely fostered an environment of creativity and innovation, leading to breakthroughs in their shared field.
Conclusion
Takeshi Tokuyama's dedication to innovation is evident in his numerous patents and impactful career. His advancements in power conversion devices are not only testimony to his skills as an inventor but also highlight the collaborative efforts within his field. As technology continues to evolve, Tokuyama's contributions stand as significant milestones in improving energy efficiency and device performance.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile