Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8257837 | Organic light-emitting device | Yoshiaki Takahashi | 2012-09-04 |
| 8025987 | Light emitting polymer material, organic electroluminescence device and display device comprising light emitting polymer material | Yoshiaki Takahashi | 2011-09-27 |
| 7872411 | Organic electroluminescence device using a copolymer and a phosphorescent compound | Yoshiaki Takahashi, Tamami Koyama | 2011-01-18 |
| 6342330 | Photosensitive compositions and pattern formation method | Masaharu Watanabe, Noriaki Tochizawa, Hirotaka Tagoshi | 2002-01-29 |
| 6126850 | Freeze-preventing material and method for preventing pavement surface from freezing | Nobuya Ishioka, Masaki Sazawa, Kenichi Kitamura | 2000-10-03 |
| 6090899 | Terpolymers of unsaturated sulfonates, N-vinylamides and ethylenic monomers | Takanori Futami, Hirotaka Tagoshi | 2000-07-18 |
| 5968555 | Fine particulate cross-linked type N-vinylamide resin | — | 1999-10-19 |
| 5965651 | Liquid-absorbing material composition, molded product therefrom, process for preparing the same and use thereof | Tetsuya Ishii | 1999-10-12 |
| 5934011 | Seedling culture mat | Nobuya Ishioka | 1999-08-10 |
| 5788950 | Method for the synthesis of mixed metal oxide powders | Kunio Imamura, John DiGregorio, Douglas M. Smith, Hirozumi Izawa | 1998-08-04 |
| 5744118 | Method for the synthesis of mixed metal oxide powders | Kunio Imamura, John DiGregorio, Douglas M. Smith, Hirozumi Izawa | 1998-04-28 |
| 5338815 | Fine particulate crosslinked type n-vinylamide resin and microgel, process for preparing same, and use thereof | Toshiyuki Aizawa, Hitoshi Nakamura | 1994-08-16 |
| 5280095 | Fine particulate crosslinked type N-vinylamide resin and microgel, process for preparing same, and use thereof | Toshiyuki Aizawa, Hitoshi Nakamura | 1994-01-18 |
| 5274078 | Process for producing collagen powder | Tetsuo Wada | 1993-12-28 |
| 5153067 | Collagen powder having good dispersion stability and use thereof as leather-like surface layer-forming agent | Eiichi, deceased Yoshida, Tetsuo Wada, Mina Saito | 1992-10-06 |
| 4833256 | Fluoran derivatives and recording material containing the same | Teijiro Kitao, Katsumi Murofushi, Masato Futagami, Nobuyuki Nagato, Kunio Imamura | 1989-05-23 |
| 4581394 | Agent for forming surface-protecting layer on coated paper | Eiichi Yoshida, Susumu Tago, Kunio Imamura | 1986-04-08 |