Issued Patents All Time
Showing 1–5 of 5 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, Akira Utsunomiya | 2004-02-17 |
| 5530144 | Process for producing a phosphorus-vanadium oxide catalyst precursor, process for producing a phosphorus-vanadium oxide catalyst, and process for producing maleic anhydride by vapor phase oxidation using the catalyst | Masayoshi Murayama, Kenji Shima, Masumi Ito | 1996-06-25 |
| 5498731 | Oxide catalyst and process for producing maleic anhydride by using oxide catalyst | Masumi Ito, Ken Shiraga | 1996-03-12 |
| 5100841 | Porous glass and process for its production | Keisuke Wada | 1992-03-31 |
| 4978641 | Porous glass and process for its production | Keisuke Wada | 1990-12-18 |