This inventor holds 8 USPTO granted patents, plus 1 CIPO patent. Top assignees: Toyoda Gosei Co., Ltd., Other. Active years: 1998-2012.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Anjyo, JP (1998)
- Inazawa, JP (2001 - 2002)
- Aichi-ken, JP (2003 - 2012)
- Kiyosu, JP (2012)
Company Filing History:
7 out of 3,086 
1 out of 834,570 Years Active: 1998-2012
Title: The Innovations of Yukitaka Hasegawa
Introduction
Yukitaka Hasegawa is a prominent inventor based in Aichi-ken, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 8 patents. His work focuses on improving light emission efficiency in nitride-based semiconductor light-emitting elements.
Latest Patents
One of Hasegawa's latest patents is for a nitride-based semiconductor light-emitting element. The purpose of this invention is to enhance light emission efficiency by reducing sheet resistance and forward voltage in a translucent electrode that includes indium cerium oxide. This innovative element features a translucent electrode composed of indium cerium oxide, with cerium oxide present in a ratio of 10 to 20 wt % relative to the total indium cerium oxide. Another notable patent involves a semiconductor light-emitting element that includes a semiconductor laminated body. This body consists of a first conductivity type layer, a light-emitting layer, and a second conductivity type layer in that order. It also features a transparent electrode formed on the first conductivity type layer and an auxiliary electrode positioned between the first conductivity type layer and the transparent electrode. The auxiliary electrode is designed to have higher reflectivity to light emitted from the light-emitting layer, larger contact resistance with the first conductivity type layer, and smaller sheet resistance compared to the transparent electrode.
Career Highlights
Hasegawa has worked with Toyoda Gosei Co., Ltd., where he has contributed to various innovative projects. His expertise in semiconductor technology has positioned him as a key figure in the industry.
Collaborations
Some of Hasegawa's notable coworkers include Yasuhiko Ogisu and Yousuke Maruoka. Their collaborative efforts have further advanced the field of semiconductor technology.
Conclusion
Yukitaka Hasegawa's contributions to semiconductor technology through his patents and collaborations highlight his innovative spirit and dedication to improving light emission efficiency. His work continues to influence the industry and pave the way for future advancements.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile