Issued Patents All Time
Showing 26–32 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7615456 | Method for manufacturing SOI substrate | Shoji Akiyama, Yoshihiro Kubota, Atsuo Ito, Makoto Kawai, Koichi Tanaka | 2009-11-10 |
| 7595866 | Method for measuring non-circularity at core portion of optical fiber parent material | Tetsuya Otosaka, Hiroshi Oyamada | 2009-09-29 |
| 7213416 | Glass base material producing device | Tadakatsu Shimada, Kazuhisa Hatayama, Hideo Hirasawa | 2007-05-08 |
| 7055345 | Glass base material manufacturing apparatus and glass base material manufacturing method | Tadakatsu Shimada, Hiroshi Machida, Masataka Watanabe, Hiroshi Tsumura, Hideo Hirasawa | 2006-06-06 |
| 6698240 | Apparatus for manufacturing glass base material and a method for manufacturing glass base material | Hiroshi Tsumura, Hiroyuki Koide, Kazuhisa Hatayama, Go Ogino, Tadakatsu Shimada +1 more | 2004-03-02 |
| 6672112 | OVD apparatus including air-regulating structure | Tadakatsu Shimada, Hiroshi Machida, Masataka Watanabe, Hiroshi Tsumura, Hideo Hirasawa | 2004-01-06 |
| 6546759 | Glass base material manufacturing apparatus with super imposed back-and-forth burner movement | Tadakatsu Shimada, Hiroshi Machida, Masataka Watanabe, Hiroshi Tsumura, Hideo Hirasawa | 2003-04-15 |