Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5958305 | Film of aromatic polyethersulfone, process for the production thereof, and solution composition for the production thereof | Takashi Shiro, Kaoru Iwata, Hideaki Nitta, Takeshi Sasaki | 1999-09-28 |
| 5759449 | Film of aromatic polyethersulfone, process for the production thereof, and solution composition for the production thereof | Takashi Shiro, Kaoru Iwata, Hideaki Nitta, Takeshi Sasaki | 1998-06-02 |
| 5695694 | Method of producing an acylated cellulose film | Kaoru Iwata, Masanori Abe, Takeshi Sasaki | 1997-12-09 |
| 5645766 | Film of aromatic polyethersulfone process for the production thereof and solution composition for the production thereof | Takashi Shiro, Kaoru Iwata, Hideaki Nitta, Takeshi Sasaki | 1997-07-08 |
| 5629066 | Resin article having anti-static property | Tsuneo Hagiwara | 1997-05-13 |
| 5614287 | Magneto-optical recording medium comprising a specified substrate | Masahiko Sekiya, Kiyoshi Chiba | 1997-03-25 |
| 5561180 | Polycarbonate film for optical purposes and a production process thereof | Yutaka Taketani, Kaoru Iwata, Hideaki Nitta, Takeshi Sasaki | 1996-10-01 |
| 5478518 | Polycarbonate film for optical purposes and a production process thereof | Yutaka Taketani, Kaoru Iwata, Hideaki Nitta, Takeshi Sasaki | 1995-12-26 |
| 4215168 | Laminated multilayer sheet structure and its utilization | Kiyoshi Chiba, Kunio Itoh, Yuji Mitani, Shigenobu Sobajima | 1980-07-29 |
| 4206615 | Insulative multi-pane window structure of refrigerator or freezer | Shigenobu Sobajima, Kiyoshi Chiba, Kunio Itoh, Yuji Mitani | 1980-06-10 |