Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6692665 | Lithium managanese oxide, cathode material for lithium secondary battery, cathode, lithium secondary battery and process for manufacturing lithium manganese oxide | Koji Shima, Yasushi Tsurita | 2004-02-17 |
| 6225245 | Silica gel, synthetic quartz glass powder and shaped product of quartz glass | Yoshio Katsuro, Akihiro Takazawa, Takashi Moriyama | 2001-05-01 |
| 6131409 | Process for producing a high purity synthetic quartz | Yoshio Katsuro, Takanobu Katsuki, Akihiro Takazawa, Hanako Kato | 2000-10-17 |
| 6110852 | Process for producing synthetic quartz glass powder | Yoshio Katsuro, Hozumi Endo, Hiroaki Nagai, Toshifumi Yoshikawa, Shoji Oishi +1 more | 2000-08-29 |
| 6071838 | Silica gel, synthetic quartz glass powder, quartz glass shaped product molding, and processes for producing these | Hozumi Endo, Yoshio Katsuro, Masaru Shimoyama | 2000-06-06 |
| 5641884 | Spiro-naphtho-oxazine compound and photosensitive materials using the same | Shinichi Sato, Hiroyoshi Yamaga, Nobuo Suzuki | 1997-06-24 |
| 5604163 | Synthetic silica glass powder | Hozumi Endo, Kazumi Kimura | 1997-02-18 |
| 5516350 | Process for producing synthetic quartz glass powder | Hajime Onoda, Hiroshi Ota, Kazumi Kimura, Masaru Shimoyama | 1996-05-14 |
| 5145510 | Silica glass powder and a method for its production and a silica glass body product made thereof | Shun Saito, Kazumi Kimura | 1992-09-08 |
| 5114881 | Process for producing a ceramic preform | Tsugio Kaneko, Tsuneo Kimura, Michihiro Ikeda, Yuka Ohno | 1992-05-19 |
| 4797265 | Process for the production of highly concentrated phosphoric acid | Tadashi Inoue, Akira Ohkoba, Kunio Sakashita, Takeki Shinozaki, Minoru Ieda | 1989-01-10 |