Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8419921 | Electrolytic apparatus for producing fluorine or nitrogen trifluoride | Tetsuro Tojo, Hitoshi Takebayashi, Masashi Kodama | 2013-04-16 |
| 8419908 | Electrolytic apparatus for producing fluorine or nitrogen trifluoride | Tetsuro Tojo, Hitoshi Takebayashi, Masashi Kodama | 2013-04-16 |
| 8387559 | Semiconductor manufacturing plant | Osamu Yoshimoto, Hiroshi Hayakawa, Tetsuro Tojo, Tsuneyuki Okabe, Takanobu Asano +3 more | 2013-03-05 |
| 8366886 | Fluorogas generator | Noriyuki Tanaka, Osamu Yoshimoto, Hiroshi Hayakawa, Tetsuro Tojo | 2013-02-05 |
| 8142623 | Electrolytic apparatus for producing fluorine or nitrogen trifluoride | Tetsuro Tojo, Hitoshi Takebayashi, Masashi Kodama | 2012-03-27 |
| 8128792 | Fluorine gas generator | Osamu Yoshimoto, Tetsuro Tojo | 2012-03-06 |
| 8038852 | Fluorine gas generator | Tetsuro Tojo, Osamu Yoshimoto, Hitoshi Takebayashi, Yoshitomi Tada, Udai Tanaka | 2011-10-18 |
| 7556678 | Gas generator | Hiroshi Hayakawa, Osamu Yoshimoto, Noriyuki Tanaka, Tetsuro Tojo | 2009-07-07 |
| 7351322 | Fluorine gas generator and method of electrolytic bath liquid level control | Osamu Yoshimoto, Tetsuro Tojo | 2008-04-01 |
| 7343924 | System for supplying halogen gas or halogen containing gas and method thereof | Tetsuro Tojo, Osamu Yoshimoto | 2008-03-18 |
| 7316765 | Apparatus and method for molten salt electrolytic bath control | Tetsuro Tojo, Osamu Yoshimoto | 2008-01-08 |
| 7288180 | Electric current control method and apparatus for use in gas generators | Tetsuro Tojo, Osamu Yoshimoto | 2007-10-30 |
| 6818105 | Apparatus for generating fluorine gas | Tetsuro Tojo, Hitoshi Takebayashi, Yoshitomi Tada | 2004-11-16 |
| 5695883 | Carbon member having a metal spray coating | Yoshio Harada, Junichi Takeuchi, Shigeki Okunishi, Tetsuro Tojo, Koji Kuroda | 1997-12-09 |