Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6284670 | Method of etching silicon wafer and silicon wafer | Hiroshi Tanaka, Atsushi Sakaida, Toshihisa Taniguchi, Tsuyoshi Fukada | 2001-09-04 |
| 6194236 | Electrochemical etching method for silicon substrate having PN junction | Minekazu Sakai, Tsuyoshi Fukada, Yukihiko Tanizawa, Koki Mizuno, Yasutoshi Suzuki +4 more | 2001-02-27 |
| 5972236 | Etchant, etching method using the same, and related etching apparatus | Hiroshi Tanaka, Motoki Ito, Kazuyuki Inoue, Satoru KOSAKA | 1999-10-26 |
| 5949118 | Etching method for silicon substrates and semiconductor sensor | Minekazu Sakai, Tsuyoshi Fukada, Koki Mizuno, Yasutoshi Suzuki, Hiroshi Tanaka +3 more | 1999-09-07 |
| 5912903 | Method and system for quickly transferring data in a network having computers connected therewith | Susumu Nakayashiki, Mitsugu Kohatsu, Kiyoyuki Takemi, Osamu Kinoshita | 1999-06-15 |
| 5899750 | Fine processing method | Hiroshi Tanaka, Koji Matsumoto, Kazuyuki Inoue | 1999-05-04 |