Location History:
- Saitama, JP (2010 - 2012)
- Niiza, JP (2007 - 2015)
Company Filing History:
10 out of 644 
1 out of 2,946 
Years Active: 2007-2015
Title: **Tetsuji Matsuo: A Pioneer in Semiconductor Innovations**
Introduction
Tetsuji Matsuo, a notable inventor based in Niiza, Japan, has made significant contributions to the field of semiconductor technology. With an impressive portfolio of 10 patents, Matsuo continues to advance innovation in the semiconductor industry, particularly through his work on photocathodes and semiconductor devices.
Latest Patents
Among Matsuo's latest inventions is a patent for a **semiconductor photocathode and method for manufacturing the same**. This semiconductor photocathode design features an AlGaN layer, bonded to a glass substrate via an SiO layer, along with an alkali-metal-containing layer on top of the AlGaN layer. The complexity of the design includes a first region, a second region, and an intermediate region, each characterized by distinct semiconductor superlattice structures. The composition ratio of aluminum (Al) in unit sections decreases monotonically with distance from the interface between the second region and the SiO layer, showcasing innovative material engineering.
Another significant contribution is his patent for a **semiconductor device having a nitride semiconductor layer**. This invention incorporates a silicon substrate, an aluminum nitride layer doped with silicon as an impurity, a buffer layer constructed with multiple laminated nitride semiconductor films, and a functional semiconductor layer made of nitride semiconductor material. These advancements illustrate Matsuo's commitment to enhancing semiconductor performance and functionality.
Career Highlights
Tetsuji Matsuo has proven his expertise through his professional engagements at companies such as Sanken Electric Co., Ltd. and Hamamatsu Photonics K.K. His experience at these reputable firms has enabled him to delve deeply into cutting-edge semiconductor technologies and contribute to their development and commercialization.
Collaborations
Throughout his career, Matsuo has collaborated with esteemed colleagues, including Mikio Tazima and Hidekazu Aoyagi. These partnerships reflect his ability to work effectively within a team, further driving innovation in the field of semiconductor research and development.
Conclusion
Tetsuji Matsuo stands out as a prominent figure in the semiconductor industry, recognized for his innovative patents and collaborative efforts. His inventions not only pave the way for advanced semiconductor applications but also reinforce the importance of ongoing research and development in this vital technology sector.