Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6258969 | Polyalkoxysiloxane and process for its production | Takeshi Sawai, Hanako Kato, Seiichiro Tanaka, Haruo Katsumata, Hozumi Endo | 2001-07-10 |
| 6225245 | Silica gel, synthetic quartz glass powder and shaped product of quartz glass | Akira Utsunomiya, Yoshio Katsuro, Takashi Moriyama | 2001-05-01 |
| 6131409 | Process for producing a high purity synthetic quartz | Yoshio Katsuro, Takanobu Katsuki, Hanako Kato, Akira Utsunomiya | 2000-10-17 |