Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12385587 | Connector connection structure | — | 2025-08-12 |
| 7323503 | Process for producing ethylene-vinyl alcohol copolymer resin, process for producing pellets and resin pellets | Takaharu Kawahara, Hiroshi Kawai, Toshio Tuboi, Masao Hikasa | 2008-01-29 |
| 6838029 | Method for producing ethylene-vinyl alcohol copolymer resin | Takaharu Kawahara, Toshio Tuboi, Masao Hikasa, Hiroshi Kawai | 2005-01-04 |
| 6800687 | Method and apparatus for producing ethylene-vinyl acetate copolymer saponification product | Takaharu Kawahara, Toshio Tuboi, Tetsuya Hikasa | 2004-10-05 |
| 6686405 | Process for producing ethylene-vinyl alcohol copolymer resin, process for producing pellets and resin pellets | Takaharu Kawahara, Hiroshi Kawai, Toshio Tuboi, Masao Hikasa | 2004-02-03 |
| 6613833 | Method for producing aqueous ethylene-vinyl alcohol copolymer composition | Takaharu Kawahara, Toshio Tuboi | 2003-09-02 |
| 6288165 | Resin composition comprising a saponified product of vinyl acetate polymer | Takeshi Moritani, Kaoru Ikeda, Akimasa Aoyama, Takaharu Kawahara, Naoshi Nakagawa +1 more | 2001-09-11 |
| 5744547 | Processes for producing vinyl acetate polymer and saponified product of vinyl acetate polymer and resin composition | Takeshi Moritani, Kaoru Ikeda, Akimasa Aoyama, Takaharu Kawahara, Naoshi Nakagawa +1 more | 1998-04-28 |