Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4871815 | Method of making chlorosulfonated polyethylene | Tatsushi Nakagawa, Mamoru Narui | 1989-10-03 |
| 4740549 | Ink composition for writing board | Shuichi Okuzono, Takashi Shintani | 1988-04-26 |
| 4663396 | Method for producing chlorosulfonated polyethylene with controlling addition amount of sulfur of the chlorosulfonated polyethylene | Tatsushi Nakagawa, Mamoru Narui | 1987-05-05 |
| 4639508 | Process for producing granular composition of ethylenethiourea-chloroprene rubber | Shuichi Okuzono | 1987-01-27 |
| 4544709 | Process for producing chlorosulfonated polyethylene using a mixed solvent | Mamoru Narui, Tatsushi Nakagawa | 1985-10-01 |
| 4511679 | Process for preparing a rubber-asphalt composition | Takashi Ariyoshi, Noriaki Emura | 1985-04-16 |
| 4367097 | Method for manufacturing granular organic rubber chemical composition | Takao Hayashi, Tatsuya Koizumi, Sumio Akashi | 1983-01-04 |
| 4234704 | Chloroprene polymer composition | Mamoru Narui | 1980-11-18 |
| 4194999 | Process for producing powdery rubber | Takao Hayashi, Akihiko Shimizu | 1980-03-25 |