Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10899153 | Heat-sensitive recording material and diphenylsulfone | Tsunetoshi Egusa, Takashi Fujii, Takaaki Kurata | 2021-01-26 |
| 7585361 | Porphyrazine coloring matter, ink, ink set and colored product | Takashi Yoneda, Yoshiaki Kawaida, Takafumi Fujii | 2009-09-08 |
| 6432807 | Method of forming solder bumps on a semiconductor device using bump transfer plate | Chikara Yamashita, Tetsuya Tao | 2002-08-13 |