Issued Patents All Time
Showing 26–47 of 47 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7320841 | Fuel cell and separator structure used therein | Hiroshi Yamauchi, Ko Takahashi | 2008-01-22 |
| 7283457 | Optical recording medium and method of evaluating optical recording medium | Hideki Hirata | 2007-10-16 |
| 7279244 | Fuel cell, polyelectrolyte and ion-exchange resin use for same | Makoto Morishima, Tomoichi Kamo, Toshiyuki Kobayashi, Tohru Koyama | 2007-10-09 |
| 7233565 | Optical recording medium | Tsuyoshi Komaki | 2007-06-19 |
| 7161893 | Stamper for fabrication of optical recording medium, method of forming information recording area and light transmissive layer, and optical recording medium | Tsuyoshi Komaki, Kazuki Suzawa | 2007-01-09 |
| 7138165 | Intermediate for optical recording medium, mold, molding apparatus, and method of manufacturing optical recording medium | Atsushi Koyama, Mamoru Usami, Mikio Domon | 2006-11-21 |
| 7125593 | Optical recording medium | Tsuyoshi Komaki, Takashi Yamada | 2006-10-24 |
| 7055162 | Optical information medium and making method | Tsuyoshi Komaki, Hideki Hirata | 2006-05-30 |
| 7044726 | Mold component and mold assembly | Atsushi Koyama, Mamoru Usami, Mikio Domon, Kazuki Suzawa | 2006-05-16 |
| 7022743 | Fuel cell, polyelectrolyte and ion-exchange resin used for same | Makoto Morishima, Tomoichi Kamo, Toshiyuki Kobayashi, Tohru Koyama | 2006-04-04 |
| 7018697 | Optical recording medium | Tsuyoshi Komaki, Takashi Yamada | 2006-03-28 |
| 6989212 | Fuel cell, polyelectrolyte and ion-exchange resin used for same | Makoto Morishima, Tomoichi Kamo, Toshiyuki Kobayashi, Tohru Koyama | 2006-01-24 |
| 6964823 | Solid polymer electrolyte, a membrane using thereof, a solution for coating electrode catalyst, a membrane/electrode assembly, and a fuel cell | Toru Koyama, Toshiyuki Kobayashi, Tomoichi Kamo, Kazutoshi Higashiyama | 2005-11-15 |
| 6898796 | Optical information medium and making method | Tsuyoshi Komaki, Hideki Hirata | 2005-05-24 |
| 6893764 | Solid polyelectrolyte, assembly of membrane and electrodes, and fuel cell | Tohru Koyama, Toshiyuki Kobayashi, Tomoichi Kamo, Kazutoshi Higashiyama | 2005-05-17 |
| 6869713 | Fuel cell, fuel cell generator, and equipment using the same | Tomoichi Kamo, Syuichi Oohara, Jinichi Imahashi, Masanori Yoshikawa, Norio Yamada | 2005-03-22 |
| 6835435 | Stamper, mold system, recording medium substrate, recording medium, optical disc substrate, optical disc, and method for producing stamper | Yuuichi Kawaguchi, Hiroaki Takahata, Hisaji Oyake, Yoshimi Sakai | 2004-12-28 |
| 6815029 | Stamper, mold system, recording medium substrate, recording medium, optical disc substrate, optical disc, and method for producing stamper | Yuuichi Kawaguchi, Hiroaki Takahata, Hisaji Oyake, Yoshimi Sakai | 2004-11-09 |
| 6689415 | Method and apparatus for preparing optical information medium | Tsuyoshi Komaki, Hideki Hirata | 2004-02-10 |
| 6670065 | Solid polymer electrolyte, a membrane using thereof, a solution for coating electrode catalyst, a membrane/electrode assembly, and a fuel cell | Toru Koyama, Toshiyuki Kobayashi, Tomoichi Kamo, Kazutoshi Higashiyama | 2003-12-30 |
| 5648105 | Apparatus for making a plurality of optical record disc subtrates | Seiki Shimazu, Yoshimi Sakai, Atsushi Koyama, Yuichi NAMIKAWA | 1997-07-15 |
| 5458821 | Method of making a plurality of optical record disc substrates | Seiki Shimazu, Yoshimi Sakai, Atsushi Koyama, Yuichi NAMIKAWA | 1995-10-17 |