Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8906158 | Method for producing compound semiconductor epitaxial substrate having PN junction | Kenji Kohiro, Masahiko Hata | 2014-12-09 |
| 8691674 | Method for producing group 3-5 nitride semiconductor and method for producing light-emitting device | Sadanori Yamanaka, Yoshihiko Tsuchida | 2014-04-08 |
| 8169004 | Compound semiconductor epitaxial substrate and process for producing the same | Kenji Kohiro, Tomoyuki Takada, Masahiko Hata | 2012-05-01 |
| 8097887 | Light emitting device having a monotone decreasing function | Sadanori Yamanaka, Yoshinobu Ono | 2012-01-17 |
| 8097891 | Group III nitride semiconductor light emitting device and method for producing the same | Kenji Kasahara, Yoshinobu Ono | 2012-01-17 |
| 7811839 | Semiconductor light emitting device and method for manufacturing the same | Kenji Kasahara | 2010-10-12 |
| 7645625 | Method for fine processing of substrate, method for fabrication of substrate, and light emitting device | Yoshinobu Ono, Kenji Kasahara | 2010-01-12 |
| 7595259 | Method for manufacturing compound semiconductor substrate with pn junction | Kenji Kohiro, Masahiko Hata | 2009-09-29 |
| 6800105 | Abrasive for metal | Masayuki Takashima | 2004-10-05 |
| 5804513 | Abrasive composition and use of the same | Yoshiaki Sakatani, Yoshiaki Takeuchi | 1998-09-08 |
| 5697992 | Abrasive particle, method for producing the same, and method of use of the same | Yoshiaki Takeuchi | 1997-12-16 |