Issued Patents 1997
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5690608 | Ultrasonic apparatus for health and beauty | Takashi Hamaura, Masao Utsumi | 1997-11-25 |
| 5679849 | Method of producing a bis(2-carboxyethyl)alkyl phosphine oxide and a derivative thereof | Masashi Sugiya, Kaoru Takeuchi | 1997-10-21 |
| 5673923 | Split seal ring made of synthetic resin having crossed diverging ends | Tatsuei Sakata | 1997-10-07 |
| 5674369 | Method for manufacturing color filter by electrodeposition and electrode used therefor | Toshiaki Ota, Tsuyoshi Nakano | 1997-10-07 |
| 5663419 | Bifunctional alkyl phosphine oxide and production method thereof | Masashi Sugiya, Seiji Shimura | 1997-09-02 |
| 5644558 | Recording and/or reproducing apparatus for disc-shaped recording medium | Akihisa Inatani, Shuichi Nagano, Kanji Mita, Shuji Minami, Haruyuki Tamura +3 more | 1997-07-01 |
| 5641578 | Weldable black steel sheet | Naoto Yoshimi, Masaaki Yamashita, Toshiyuki Ookuma, Tatsuya Miyoshi, Toyofumi Watanabe | 1997-06-24 |
| 5633104 | Method for manufacturing color filter | Jun-ichi Yasukawa, Toshiaki Ota, Nobuhiko Nishihara, Tsuyoshi Tokuda | 1997-05-27 |
| 5614337 | Method for manufacturing multi-color filter and full color display devices | Jun-ichi Yasukawa, Toshiaki Ota | 1997-03-25 |