Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5264409 | Pressure-sensitive copying material | Naoya Takahashi, Yasuo Togami | 1993-11-23 |
| 5214021 | Pressure sensitive copy article | Naoya Takahashi, Yasuo Togami, Ryoichi Miura | 1993-05-25 |
| 4879269 | Pressure sensitive copy material | Naoya Takahashi, Eiichi Matsuzaka | 1989-11-07 |
| 4803238 | Polymer composition | Atsushi Sato, Keiji Endo, Shigenobu Kawakami, Eiichi Matsuzaka | 1989-02-07 |
| 4686548 | Pressure-sensitive recording material | Naoya Takahashi, Keiji Endo, Eiichi Matsuzaka, Atsushi Sato | 1987-08-11 |
| 4661165 | Solvent for the dye of pressure-sensitive recording paper | Shigenobu Kawakami, Eiichi Matsuzaka, Naoya Takahashi | 1987-04-28 |
| 4642730 | Electrical insulating oil and oil-filled electrical appliances | Atsushi Sato, Keiji Endo, Shigenobu Kawakami, Eiichi Matsuzaka | 1987-02-10 |