Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5039758 | Process for producing N-polyoxyalkylated polyamides | Takashi Tobita, Masuhiro Ikeshima, Itsuo Nakabayashi | 1991-08-13 |
| 4803288 | Process for producing macrocyclic ester compounds | Satoshi Kitamura, Takashi Tobita, Motoki Kanazawa | 1989-02-07 |
| 4729941 | Photoresist processing solution with quaternary ammonium hydroxide | Kunio Itoh, Kimio Watabe | 1988-03-08 |
| 4579980 | Process for producing ether compounds | Kiyoshi Kogoma, Norio Sone, Takashi Tobita | 1986-04-01 |
| 4336307 | Hollow water absorbing polyester filaments and a process for producing the same | Kiyoshi Nawata, Osamu Wada, Kiyokazu Tsunawaki, Takatoshi Kuratsuji, Wataru Funakoshi +1 more | 1982-06-22 |
| 4229552 | Fire-retardant polyester compositions | Kiyoshi Nawata, Kiyokazu Tsunawaki, Kazumi Tsubaki, Akira Yanagimoto, Shunichi Kumazawa | 1980-10-21 |