Issued Patents All Time
Showing 26–50 of 66 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6743851 | Polyimide film | Akira Tanaka, Satoshi Tazaki, Kishio Yokouchi | 2004-06-01 |
| 6734248 | Pattern forming process using polyimide resin composition | Akira Tanaka, Satoshi Tazaki, Kishio Yokouchi | 2004-05-11 |
| 6693736 | Optical circuit system and components of same | Tetsuzo Yoshimura, Takeshi Ishitsuka, Katsusada Motoyoshi, Satoshi Tatsuura, Wataru Sotoyama +3 more | 2004-02-17 |
| 6403289 | Developer for photosensitive polyimide resin composition | Akira Tanaka, Kei Sakamoto, Kishio Yokouchi | 2002-06-11 |
| 6338975 | Optical circuit device, its manufacturing process and a multilayer optical circuit using said optical circuit device | Tetsuzo Yoshimura, Satoshi Tatsuura, Wataru Sotoyama, Katsusada Motoyoshi, Koji Tsukamoto +1 more | 2002-01-15 |
| 6310135 | Polyimide resin composition | Akira Tanaka, Satoshi Tazaki, Kishio Yokouchi | 2001-10-30 |
| 6307091 | Trifluoro-substituted benzoic acid, esters thereof and processes for preparing the same | Yasuhito Yamamoto, Kikuo Ataka, Naoyuki Yokota | 2001-10-23 |
| 6160171 | Trifluoro-substituted benzoic acid, esters thereof, and process for producing the same | Yasuhito Yamamoto, Kikuo Ataka, Naoyuki Yokota | 2000-12-12 |
| 6160081 | Photosensitive polyimide resin composition | Akira Tanaka, Kei Sakamoto, Kenichi Ito, Kishio Yokouchi, Yasuo Naganuma | 2000-12-12 |
| 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, Koji Tsukamoto +4 more | 2000-06-27 |
| 6017681 | Method of coupling optical parts and method of forming a mirror | Koji Tsukamoto, Takeshi Ishitsuka, Tetsuzo Yoshimura, Katsusada Motoyoshi | 2000-01-25 |
| 6001488 | Composition of epoxy group-containing cycloolefin resin | Hideaki Kataoka, Eiko Yuda, Shigemitsu Kamiya, Masahide Yamamoto, Yoshikatsu Ishizuki +2 more | 1999-12-14 |
| 5942292 | Spacer for liquid crystal display and liquid crystal display made by using the same | Kazuo Kubota, Tetsuo Takano | 1999-08-24 |
| 5917980 | Optical circuit device, its manufacturing process and a multilayer optical circuit using said optical circuit device | Tetsuzo Yoshimura, Satoshi Tatsuura, Wataru Sotoyama, Katsusada Motoyoshi, Koji Tsukamoto +1 more | 1999-06-29 |
| 5902715 | Method of forming a mirror in a waveguide | Koji Tsukamoto, Takeshi Ishitsuka, Tetsuzo Yoshimura, Katsusada Motoyoshi | 1999-05-11 |
| 5895800 | Composition of epoxy group-containing cycloolefin resin | Hideaki Kataoka, Eiko Yuda, Shigemitsu Kamiya, Masahide Yamamoto, Yoshikatsu Ishizuki +2 more | 1999-04-20 |
| 5886136 | Pattern forming process | Akira Tanaka, Masami Koshiyama, Kei Sakamoto, Kishio Yokouchi, Daisuke Mizutani +1 more | 1999-03-23 |
| 5861444 | Refractive index imaging material | Koji Tsukamoto, Takeshi Ishitsuka, Tetsuzo Yoshimura, Katsusada Motoyoshi | 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, Koji Tsukamoto, Shigenori Aoki +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, Katsusada Motoyoshi, Koji Tsukamoto +2 more | 1998-10-06 |
| 5804354 | Composition for forming conductivity imparting agent and pattern forming method | Keiji Watanabe, Takashi Maruyama, Keiko Yano, Tomio Nakamura, Shigeru Shimizu +5 more | 1998-09-08 |
| 5783359 | Rubber photoresist composite and a method for producing a circuit board using thereof | Shigeru Tomisawa, Masahiko Sugimura | 1998-07-21 |
| 5783639 | Composition of epoxy group-containing cycloolefin resin | Hideaki Kataoka, Eiko Yuda, Shigemitsu Kamiya, Masahide Yamamoto, Yoshikatsu Ishizuki +2 more | 1998-07-21 |
| 5777068 | Photosensitive polyimide resin composition | Akira Tanaka, Satoshi Tazaki, Kei Sakamoto, Kishio Yokouchi, Daisuke Mizutani +1 more | 1998-07-07 |
| 5757989 | Optical circuit system capable of producing optical signal having a small fluctuation and components of same | Tetsuzo Yoshimura, Takeshi Ishitsuka, Katsusada Motoyoshi, Satoshi Tatsuura, Wataru Sotoyama +3 more | 1998-05-26 |