Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10222039 | Luminaire | Tamotsu Ando | 2019-03-05 |
| 6576503 | Laser diodes and manufacturing methods | Takeshi Kikawa | 2003-06-10 |
| 6455876 | Semiconductor radiative device | Takeshi Kikawa | 2002-09-24 |
| 6086809 | Method of forming a belt/belt sleeve and a belt/belt sleeve made using the method | Yoshiki Matsuura | 2000-07-11 |
| 5741360 | Method of growing a crystal of a compound semiconductor at a low temperature | Yasuhiko Nomura, Yoshitaka Morishita, Seikoh Yoshida, Masahiro Sasaki | 1998-04-21 |
| 5668402 | Semiconductor device | Kazuhiro Mochizuki, Chushirou Kusano, Masahiko Kawata, Hiroshi Masuda, Katsuhiko Mitani +1 more | 1997-09-16 |
| 5656540 | Semiconductor crystal growing method | Yasuhiko Nomura, Yoshitaka Morishita | 1997-08-12 |
| 5381027 | Semiconductor device having a heterojunction and a two dimensional gas as an active layer | Toshiyuki Usagawa, Kenji Hiruma, Masahiko Kawata, Katsuhiko Mitani, Masao Yamane +3 more | 1995-01-10 |
| 5373191 | Semiconductor device and method of producing the same | Toshiyuki Usagawa, Yoshinori Imamura, Hidekazu Okuhira, Masayoshi Kobayashi, Shinichiro Takatani | 1994-12-13 |
| 5351128 | Semiconductor device having reduced contact resistance between a channel or base layer and a contact layer | Hidetoshi Matsumoto, Masamitsu Yazawa, Yasunari Umemoto, Yoko Uchida, Kenji Hiruma | 1994-09-27 |
| 5258631 | Semiconductor device having a two-dimensional electron gas as an active layer | Toshiyuki Usagawa, Kenji Hiruma, Masahiko Kawata, Katsuhiko Mitani, Masao Yamane +3 more | 1993-11-02 |
| 5181087 | Semiconductor device and method of producing the same | Toshiyuki Usagawa, Yoshinori Imamura, Hidekazu Okuhira, Masayoshi Kobayashi, Shinichiro Takatani | 1993-01-19 |
| 5025751 | Solid film growth apparatus | Shinichiro Takatani, Masahiko Kawata, Kenji Hiruma | 1991-06-25 |
| 4914488 | Compound semiconductor structure and process for making same | Masao Yamane, Tomoyoshi Mishima, Susumu Takahashi, Makoto Morioka | 1990-04-03 |
| 4861403 | Method of fabricating a double-toothed belt | Keiichi Yoshimi, Masaaki Asazuma | 1989-08-29 |
| 4776897 | Method for treating the surface of stainless steel by high temperature oxidation | Haruji Takahashi, Syuichi Takata, Mitsuaki Shibata, Tomihira Hata | 1988-10-11 |
| 4661171 | Method for treating the surface of stainless steel by high temperature oxidation | Haruji Takahashi, Syuichi Takata, Mitsuaki Shibata, Tomihira Hata | 1987-04-28 |
| 4589941 | Method of fabricating double-toothed belts | Toshihiro Tanaka, Keiichi Yoshimi | 1986-05-20 |
| 4311505 | Method of manufacturing glass-lined metal tubes | Tadashi Yasui, Isamu Nakamura | 1982-01-19 |