Issued Patents All Time
Showing 26–32 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5482912 | Thermosensitive recording material and phthalic acid derivatives for use in the same | Keishi Taniguchi, Hideo Suzaki | 1996-01-09 |
| 5447900 | Thermosensitive recording material | Hideo Suzaki, Keishi Taniguchi, Kunio Hayakawa | 1995-09-05 |
| 5306687 | Thermosensitive recording material | Keishi Taniguchi, Kunio Hayakawa, Masafumi Torii, Shoji Maruyama, Keishi Kubo | 1994-04-26 |
| 5126486 | Phenolic compounds | Kunio Hayakawa | 1992-06-30 |
| 4985345 | Recording material | Kunio Hayakawa, Hisanori Shimada, Masahiro Nakata, Kaoru Kodera, Kouji Oohara +1 more | 1991-01-15 |
| 4978651 | Phenolic compounds and recording material comprising the same | Kunio Hayakawa | 1990-12-18 |
| 4845072 | Thermosensitive recording material | Kiyotaka Iiyama | 1989-07-04 |