Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7255775 | Semiconductor wafer treatment member | Masanari Yokogawa, Hirotaka Hagihara, Koutarou Kitayama, Chieko Fujiwara | 2007-08-14 |
| 6363098 | Carbon electrode for melting quartz glass and method of fabricating thereof | Hirotaka Hagihara, Takakazu Mori, Atsuro Miyao, Kiyoaki Misu, Shunichi Suzuki | 2002-03-26 |