Issued Patents All Time
Showing 51–75 of 80 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4835133 | Recording material | Naoto Yanagihara, Kensuke Ikeda, Masato Satomura, Yuichi Wakata | 1989-05-30 |
| 4833118 | Heat-sensitive recording material | Hiroshi Kawakami, Akira Igarashi | 1989-05-23 |
| 4812440 | Recording material containing leuco dye | Toru Harada | 1989-03-14 |
| 4808566 | Recording material | Masanobu Takashima, Masato Satomura, Katsumi Matsuoka | 1989-02-28 |
| 4803192 | Recording material | Keiso Saeki, Masanobu Takashima | 1989-02-07 |
| 4800193 | Recording material | Keiso Saeki, Masanobu Takashima, Takekatsu Sugiyama, Masato Satomura | 1989-01-24 |
| 4792542 | Recording material | Masanobu Takashima, Masato Satomura, Akira Igarashi | 1988-12-20 |
| 4791095 | Heat-sensitive recording material | Kensuke Ikeda | 1988-12-13 |
| 4771034 | Recording materials | Kensuke Ikeda, Masato Satomura | 1988-09-13 |
| 4728633 | Recording material | Masato Satomura, Akira Igarashi | 1988-03-01 |
| 4727056 | Recording material | Shojiro Sano | 1988-02-23 |
| 4721702 | Pressure-sensitive recording material | Hiroyuki Kawasaki, Shojiro Sano | 1988-01-26 |
| 4707464 | Recording material | Masanobu Takashima, Masato Satomura, Akira Igarashi | 1987-11-17 |
| 4701565 | Process for preparation of ethers | Masato Satomura, Hiroshi Kawakami | 1987-10-20 |
| 4682193 | Recording materials | Takekatsu Sugiyama | 1987-07-21 |
| 4644377 | Fluoran derivatives and recording material using the same | Masato Satomura, Akira Igarashi | 1987-02-17 |
| 4603339 | Recording material | Takekatsu Sugiyama | 1986-07-29 |
| 4585483 | Recording materials | Kensuke Ikeda, Masato Satomura | 1986-04-29 |
| 4583104 | Recording materials | Masato Satomura, Takekatsu Sugiyama | 1986-04-15 |
| 4535348 | Fluoran derivatives and recording material using same | Sadao Ishige | 1985-08-13 |
| 4520377 | Heat-sensitive recording materials | Akira Igarashi | 1985-05-28 |
| 4480052 | Heat-sensitive recording materials | Seiji Ichijima, Nobutaka Ohki, Masato Satomura | 1984-10-30 |
| 4471074 | Heat-sensitive recording materials | Masato Satomura, Sadao Ishige | 1984-09-11 |
| 4446209 | Heat-sensitive recording materials | Takekatsu Sugiyama | 1984-05-01 |
| 4436920 | Image recording members | Kozo Sato, Akira Igarashi | 1984-03-13 |