Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9512504 | Method for producing sodium tungstate, method for collecting tungsten, apparatus for producing sodium tungstate, and method for producing sodium tungstate aqueous solution | Yoshiharu Yamamoto, Kazuo Sasaya, Takayuki Fudo, Akira Nakano, Syunsuke Yamanaka +2 more | 2016-12-06 |
| 9249479 | Method for producing sodium tungstate, method for collecting tungsten, apparatus for producing sodium tungstate, and method for producing sodium tungstate aqueous solution | Yoshiharu Yamamoto, Kazuo Sasaya, Takayuki Fudo, Akira Nakano, Syunsuke Yamanaka +2 more | 2016-02-02 |
| 8632747 | Method for producing sodium tungstate, method for collecting tungsten, apparatus for producing sodium tungstate, and method for producing sodium tungstate aqueous solution | Yoshiharu Yamamoto, Kazuo Sasaya, Takayuki Fudo, Akira Nakano, Syunsuke Yamanaka +2 more | 2014-01-21 |
| 7951274 | Diamond electrode, method for producing same, and electrolytic cell | Shigeru Yoshida, Katsuhito Yoshida, Toshiya Takahashi, Fuminori Higuchi | 2011-05-31 |
| 6270898 | Tool tip and bonding tool comprising the tool tip and control method for the bonding tool | Katsuko Yamamoto, Yoshiaki Kumazawa, Katsuyuki Tanaka, Hiromu Shiomi, Takashi Tsuno +1 more | 2001-08-07 |
| 5495126 | Polycrystalline diamond heat sink having major surfaces electrically insulated from each other | Tsutomu Nakamura, Tetsuo Nakai | 1996-02-27 |
| 5299214 | Heat radiating component and semiconductor device provided with the same | Tsutomu Nakamura, Tetsuo Nakai | 1994-03-29 |
| 5294381 | Method of manufacturing a diamond heat sink | Tsutomu Nakamura, Tetsuo Nakai | 1994-03-15 |