Issued Patents All Time
Showing 26–50 of 57 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7469240 | Document classification program, vector transformation program, lexical-distortion cancellation program, document classification method, and document classification apparatus | — | 2008-12-23 |
| 7370024 | Case classification apparatus and method | — | 2008-05-06 |
| 7359594 | Optical waveguide structure and optical module | Motoyuki Nishizawa, Masayuki Kato, Yasuo Yamagishi | 2008-04-15 |
| 7197697 | Apparatus for retrieving information using reference reason of document | — | 2007-03-27 |
| 7099534 | Optical transmission device with optical waveguide coupled to optical device | Masayuki Kato, Akio Sugama, Yasuo Yamagishi | 2006-08-29 |
| 7071458 | Optical element, optical transmission unit and optical transmission system | Masatoshi Ishii, Masayuki Kato | 2006-07-04 |
| 7043111 | Optical parts coupling structure, method of manufacturing the same, optical switch, two-dimensional lens array, and method of manufacturing the same | Yukiko Ikarashi, Masayuki Kato | 2006-05-09 |
| 6980718 | Optical parts coupling structure, method of manufacturing the same, optical switch, two-dimensional lens array, and method of manufacturing the same | Yukiko Ikarashi, Masayuki Kato | 2005-12-27 |
| 6920295 | Image forming apparatus | Sohichi Yoshimura, Hiroki Eto, Kouichi Eto, Michiyuki Suzuki, Takashi Ide +11 more | 2005-07-19 |
| 6916539 | Halogen-free, flame-retardant insulating epoxy resin composition and circuit board comprising insulation layer formed thereof | Nawalage Cooray, Takeshi Ishitsuka | 2005-07-12 |
| 6739508 | Evaluation apparatus with voting system, evaluation method with voting system, and a computer product | Akira Ushioda, Seiji Okura | 2004-05-25 |
| 6693736 | Optical circuit system and components of same | Tetsuzo Yoshimura, Takeshi Ishitsuka, Katsusada Motoyoshi, Satoshi Tatsuura, Wataru Sotoyama +3 more | 2004-02-17 |
| 6603937 | Image forming apparatus | Sohichi Yoshimura, Hiroki Eto, Kouichi Eto, Michiyuki Suzuki, Takashi Ide +11 more | 2003-08-05 |
| 6549752 | Apparatus and method accumulating cases to be learned | — | 2003-04-15 |
| 6504966 | Optical deflecting element, optical switch module, light signal switching device | Masayuki Kato, Akio Sugama, Masatoshi Ishii, Kishio Yokouchi, Yasuo Yamagishi +2 more | 2003-01-07 |
| 6486235 | Composition of epoxy resin, curing agent, phosphate of resorcinol, Al (OH) | Nawalage Cooray, Takeshi Ishitsuka | 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, Takeshi Ishitsuka, Katsusada Motoyoshi, Satoshi Tatsuura, Wataru Sotoyama | 2001-04-10 |
| 6102527 | Image forming apparatus | Kenji Tani, Shirou Wakahara | 2000-08-15 |
| 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, Takeshi Ishitsuka, Shigenori Aoki +4 more | 2000-06-27 |
| 6017681 | Method of coupling optical parts and method of forming a mirror | Takeshi Ishitsuka, 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 | Takeshi Ishitsuka, Tetsuzo Yoshimura, Katsusada Motoyoshi, Yasuhiro Yoneda | 1999-05-11 |
| 5861444 | Refractive index imaging material | Takeshi Ishitsuka, 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, Takeshi Ishitsuka, Shigenori Aoki, Satoshi Tatsuura +2 more | 1998-11-10 |