Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5308684 | Burning pattern sheet | Hiroshi Nakatsuka, Yozo Oishi, Kazuhiro Tajiri, Takafumi Sakuramoto, Takashi Tominaga | 1994-05-03 |
| 5229350 | Reversible heat-senitive recording material and magnetic card using the recording material | Takae Shinagawa, Yoshihiro Hieda, Yoshinori Yoshida, Yasushi Inoue | 1993-07-20 |
| 5209796 | Method of making a burned pattern | Takafumi Sakuramoto, Takashi Tominaga | 1993-05-11 |
| 5145726 | Sheet for formation of burned pattern and burning label | Takafumi Sakuramoto, Takashi Tominaga, Itsuroh Takenoshita | 1992-09-08 |