Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6933253 | Alkali-free glass and method for producing the same | Toshiharu Narita, Shinkichi Miwa, Shigeru Yamamoto | 2005-08-23 |
| 6546753 | Method of producing an alkali-free glass | Toshiharu Narita, Shinkichi Miwa, Shigeru Yamamoto | 2003-04-15 |
| 6508083 | Alkali-free glass and method for producing the same | Toshiharu Narita, Shinkichi Miwa, Shigeru Yamamoto | 2003-01-21 |
| 5407872 | Glass fiber forming composition, glass fibers obtained from the composition and substrate for circuit board including the glass fibers as reinforcing material | Kiyotaka Komori, Seishiro Yamakawa, Shigeru Yamamoto, Tadashi Kokubo | 1995-04-18 |
| 5334645 | Substrate for circuit board including the glass fibers as reinforcing material | Kiyotaka Komori, Seishiro Yamakawa, Shigeru Yamamoto, Tadashi Kokubo | 1994-08-02 |
| 5284807 | Glass fiber forming composition, glass fibers obtained from the composition and substrate for circuit board including the glass fibers as reinforcing material | Kiyotaka Komori, Seishiro Yamakawa, Shigeru Yamamoto, Tadashi Kukubo | 1994-02-08 |