Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6252075 | Process for producing purine derivatives | Hiroshi Shiragami, Kunisuke Izawa, Satoshi Katayama | 2001-06-26 |
| 6245910 | Process for producing purine derivatives | Kunisuke Izawa, Hiroshi Shiragami | 2001-06-12 |
| 6087497 | Process for producing purine derivatives | Kunisuke Izawa, Hiroshi Shiragami | 2000-07-11 |
| 5942617 | Process for producing purine derivatives | Hiroshi Shiragami, Yumiko Uchida, Kunisuke Izawa, Satoshi Katayama | 1999-08-24 |
| 5831092 | Process for producing purine derivatives | Kunisuke Izawa, Hiroshi Shiragami | 1998-11-03 |
| 5049221 | Process for producing a copper-clad laminate | Tatsuo Wada, Tasuku Touyama, Teruaki Yamamoto | 1991-09-17 |
| 4790902 | Method of producing conductor circuit boards | Tatsuo Wada, Tasuku Touyama, Teruaki Yamamoto | 1988-12-13 |