Location History:
- Kyoto-fu, JP (2011 - 2016)
- Kyoto, JP (2010 - 2024)
Company Filing History:
26 out of 6,017 
1 out of 13 
1 out of 839 
Years Active: 2010-2025
Title: The Innovative Journey of Takukazu Otsuka: A Power Semiconductor Pioneer
Introduction: Takukazu Otsuka, a prominent inventor based in Kyoto, Japan, has made significant contributions to the field of power semiconductors. With an impressive portfolio of 24 patents, Otsuka's work focuses on improving the reliability and efficiency of semiconductor devices, which are essential components in modern electronics.
Latest Patents: Among his latest inventions is a groundbreaking power semiconductor apparatus and its fabrication method. This innovative apparatus includes a semiconductor device with a bonding layer on the chip's upper surface, as well as metal leads with a unique three-laminated structure. One key feature is the second metal layer, designed with a Coefficient of Thermal Expansion (CTE) equal to or less than 5×10⁻/°C. This configuration aims to enhance reliability by minimizing thermal stress on the bonding layer and reducing the resistance of the metal leads. Additionally, his semiconductor device includes connected switching elements and capacitors positioned to suppress surge voltage, showcasing his dedication to advancing semiconductor technology.
Career Highlights: Otsuka has gained extensive experience working for reputable companies, including Rohm Co., Ltd. and Arkansas Power Electronics International, Inc. His innovative approach and dedication to research have led to numerous advancements in the semiconductor industry, positioning him as a vital player in developing new technologies.
Collaborations: Throughout his career, Otsuka has collaborated with esteemed colleagues, including Keiji Okumura and Masao Saito. These partnerships have facilitated knowledge sharing and innovation, further contributing to the success of his projects and the advancement of semiconductor technology.
Conclusion: Takukazu Otsuka's remarkable achievements in the field of power semiconductors illustrate his innovative spirit and commitment to improving electronic devices. His extensive patent portfolio and collaborative efforts with leading industry professionals underscore his role as a significant inventor in advancing the semiconductor landscape. The impact of his work will likely continue to shape the future of technology in profound ways.