Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9708700 | Magnesium-lithium alloy, rolled material, formed article, and process for producing same | Kenki Kin, Takeki Matsumura, Shinji Namba, Takayuki Goto, Yuji Tanibuchi +1 more | 2017-07-18 |
| 9702033 | Magnesium-lithium alloy, rolled material, molded article, and process for producing same | Kenki Kin, Takeki Matsumura, Shinji Namba, Takayuki Goto | 2017-07-11 |
| 5799683 | Poppet valve and method of manufacturing it | Akihiro Hamada, Yuji Takano | 1998-09-01 |
| 5753179 | Steels for exhaust valves having improved fatigue strength at high temperature, corrosion resistance at room and higher temperatures and oxidation resistance | Yoshitaka Nishizawa, Akihiro Hamada | 1998-05-19 |
| 5596959 | Shim for a tappet in an internal combustion engine | Takeji Kenmoku, Akihiro Hamada | 1997-01-28 |
| 5554338 | Method of preparing composite sintered body | Hiroshi Sugihara, Hiroyuki Ishikawa, Tsutomu Uemura, Akira Fujiki, Hiromasa Imazato | 1996-09-10 |
| 5543029 | Properties of the surface of a titanium alloy engine valve | Takeji Kenmoku, Eiji Hirai, Kazuyoshi Kurosawa, Yoshio Matsumura | 1996-08-06 |
| 5370364 | Titanium alloy engine valve shaft structure | Takeji Kenmoku, Eiji Hirai, Kazuyoshi Kurosawa, Yoshio Matsumura | 1994-12-06 |