Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11529819 | Recording material and compound | Hiroshi Sakai, Kayoko Tada | 2022-12-20 |
| 11370240 | Recording material and recording sheet | Kayoko Tada, Hiroshi Sakai, Kazumi Hamakawa | 2022-06-28 |
| 11142015 | Recording material, and recording sheet | Kayoko Nomura, Kazumi Hamakawa, Hiroshi Sakai | 2021-10-12 |
| 10265984 | Crystalline modification of N-(2-(3-phenylureido)phenyl)benzenesulfonamide and recording material using same | Hiroshi Sakai | 2019-04-23 |
| 10226957 | Recording material and recording sheet | Kazumi Hamakawa, Hiroshi Sakai, Kayoko Tada | 2019-03-12 |
| 9518011 | Recording material produced using non-phenol compound | Hiroshi Sakai, Tadahiro Kondo, Kayoko Tada, Kazumi Jyujyo | 2016-12-13 |
| 8664157 | Recording material using phenol compound | Hiroshi Sakai, Tadahiro Kondo, Kazumi Jyujyo | 2014-03-04 |
| 8551911 | Recording material using phenolic compound | Hiroshi Sakai, Toshio Aihara, Satoshi Kodama, Kazumi Jyujyo, Tadahiro Kondo | 2013-10-08 |
| 8431513 | Phenolic compound and recording material | Toshio Aihara, Hiroshi Sakai, Satoshi Kodama, Tadahiro Kondo, Kazumi Jyujyo | 2013-04-30 |