Location History:
- Koshigaya, JP (2011 - 2016)
- Kitamoto, JP (2018)
- Sunto-gun, JP (2018)
Company Filing History:
7 out of 1,530 
1 out of 36,499 
Years Active: 2011-2018
Title: Hiroya Ishizuka: Innovator in Power-Module Substrate Manufacturing
Introduction
Hiroya Ishizuka is a notable inventor based in Koshigaya, Japan. He has made significant contributions to the field of power-module substrate manufacturing, holding a total of 7 patents. His work focuses on enhancing the efficiency and reliability of electronic components.
Latest Patents
Ishizuka's latest patents include a manufacturing method of power-module substrate. This method involves joining a circuit layer made of copper to one surface of a ceramic substrate and a heat-radiation layer made of aluminum to the other surface. The process includes a circuit layer bonding step, a surface treatment step to reduce the oxide film thickness, and a heat-radiation layer bonding step. Another significant patent is for a resistor that utilizes an Al-Si-based brazing filler material to join a heat sink and a ceramic substrate, ensuring heat resistance and preventing thermal deterioration during the joining process.
Career Highlights
Throughout his career, Ishizuka has worked with prominent companies such as Mitsubishi Materials Corporation and Toyota Motor Corporation. His experience in these organizations has allowed him to develop innovative solutions in the field of electronics.
Collaborations
Ishizuka has collaborated with notable colleagues, including Yoshirou Kuromitsu and Takeshi Kitahara. Their combined expertise has contributed to advancements in the technologies they have worked on.
Conclusion
Hiroya Ishizuka's contributions to power-module substrate manufacturing and resistor technology highlight his role as an influential inventor. His patents reflect a commitment to innovation and improvement in electronic components.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.