Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6136970 | Asymmetric dioxazine compounds and method for dyeing or printing fiber materials using the same | Kazufumi Yokogawa, Takahiko Fujisaki, Miyao Takahashi, Naoki Harada, Kingo Akahori +2 more | 2000-10-24 |
| 5650507 | Asymmetric dioxazine compounds and use thereof as fiber reactive dyes | Kingo Akahori, Junya Hada, Takashi Omura, Naoki Harada | 1997-07-22 |
| 5478936 | Asymmetric dioxazine compounds and method for dyeing or printing fiber materials using the same | Kazufumi Yokogawa, Miyao Takahashi, Takahiko Fuzisaki, Yutaka Kayane, Naoki Harada | 1995-12-26 |
| 5456726 | Reactive dye composition and method for dyeing or printing cellulose fiber material using the same | Naoki Harada, Shuhei Hashizume | 1995-10-10 |
| 5356441 | Reactive dye composition and method for dyeing or printing fiber materials using the same | Takemi Tokieda, Naoki Harada, Shuhei Hashizume, Koiti Ishii, Nobuaki Kawamura +2 more | 1994-10-18 |
| 4779905 | Forcedly air-cooled engine generator of vertical shaft type | Ryoichi Ito, Kenji Ueno, Tutomu Wada, Osamu Murakami, Kazuo Higo +1 more | 1988-10-25 |