Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10008436 | Semiconductor device | Aki Dote, Hideki Kitada | 2018-06-26 |
| 8314339 | Circuit board with kneaded conductive paste | Masayuki Kitajima, Satoshi Emoto | 2012-11-20 |
| 6916539 | Halogen-free, flame-retardant insulating epoxy resin composition and circuit board comprising insulation layer formed thereof | Nawalage Cooray, Koji Tsukamoto | 2005-07-12 |
| 6846549 | Multilayer printed wiring board | Motoaki Tani, Nobuyuki Hayashi, Hiroyuki Machida, Yasuo Yamagishi | 2005-01-25 |
| 6693736 | Optical circuit system and components of same | Tetsuzo Yoshimura, Katsusada Motoyoshi, Satoshi Tatsuura, Wataru Sotoyama, Koji Tsukamoto +3 more | 2004-02-17 |
| 6486235 | Composition of epoxy resin, curing agent, phosphate of resorcinol, Al (OH) | Nawalage Cooray, Koji Tsukamoto | 2002-11-26 |
| 6338975 | Optical circuit device, its manufacturing process and a multilayer optical circuit using said optical circuit device | Tetsuzo Yoshimura, Satoshi Tatsuura, Wataru Sotoyama, Yasuhiro Yoneda, Katsusada Motoyoshi +1 more | 2002-01-15 |
| 6215585 | Optical circuit system and components of same technical field | Tetsuzo Yoshimura, Katsusada Motoyoshi, Satoshi Tatsuura, Wataru Sotoyama, Koji Tsukamoto | 2001-04-10 |
| 6081632 | Method of producing optical waveguide system, optical device and optical coupler employing the same, optical network and optical circuit board | Tetsuzo Yoshimura, Wataru Sotoyama, Katsusada Motoyoshi, Koji Tsukamoto, Shigenori Aoki +4 more | 2000-06-27 |
| 6017681 | Method of coupling optical parts and method of forming a mirror | Koji Tsukamoto, Tetsuzo Yoshimura, Katsusada Motoyoshi, Yasuhiro Yoneda | 2000-01-25 |
| 5917980 | Optical circuit device, its manufacturing process and a multilayer optical circuit using said optical circuit device | Tetsuzo Yoshimura, Satoshi Tatsuura, Wataru Sotoyama, Yasuhiro Yoneda, Katsusada Motoyoshi +1 more | 1999-06-29 |
| 5902715 | Method of forming a mirror in a waveguide | Koji Tsukamoto, Tetsuzo Yoshimura, Katsusada Motoyoshi, Yasuhiro Yoneda | 1999-05-11 |
| 5861444 | Refractive index imaging material | Koji Tsukamoto, Tetsuzo Yoshimura, Katsusada Motoyoshi, Yasuhiro Yoneda | 1999-01-19 |
| 5835646 | Active optical circuit sheet or active optical circuit board, active optical connector and optical MCM, process for fabricating optical waveguide, and devices obtained thereby | Tetsuzo Yoshimura, Wataru Sotoyama, Koji Tsukamoto, Shigenori Aoki, Satoshi Tatsuura +2 more | 1998-11-10 |
| 5818983 | Optical integrated circuit, optical circuit waveguide device and process for oriented, selective growth and formation of organic film | Tetsuzo Yoshimura, Satoshi Tatsuura, Wataru Sotoyama, Yasuhiro Yoneda, Katsusada Motoyoshi +2 more | 1998-10-06 |
| 5757989 | Optical circuit system capable of producing optical signal having a small fluctuation and components of same | Tetsuzo Yoshimura, Katsusada Motoyoshi, Satoshi Tatsuura, Wataru Sotoyama, Koji Tsukamoto +3 more | 1998-05-26 |
| 5658966 | Method of coupling optical parts and refractive index imaging material | Koji Tsukamoto, Tetsuzo Yoshimura, Katsusada Motoyoshi, Yasuhiro Yoneda | 1997-08-19 |
| 5581646 | Method of coupling optical parts and refractive index imaging material | Koji Tsukamoto, Tetsuzo Yoshimura, Katsusada Motoyoshi, Yasuhiro Yoneda | 1996-12-03 |
| 5231440 | Method of and apparatus for forming volume type phase hologram | Yasuo Yamagishi, Motoaki Tani, Youko Kuramitsu | 1993-07-27 |
| 5154994 | Method of and apparatus for forming volume type phase hologram | Yasuo Yamagishi, Motoaki Tani, Youko Kuramitsu | 1992-10-13 |
| 4791039 | Visible ray-recording hologram material | Yasuo Yamagishi, Akihiro Mochizuki | 1988-12-13 |