Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9169543 | Precipitation-hardened, martensitic, cast stainless steel having excellent machinability and its production method | Masahide Kawabata, Seiichi Endo, Masanori Hara | 2015-10-27 |
| 8241558 | High-Cr, high-Ni, heat-resistant, austenitic cast steel and exhaust equipment members formed thereby | Keijiro Hayashi, Kenji Itoh, Akinaga Odaira | 2012-08-14 |
| 7503304 | Internal engine piston and its production method | Seiichi Endo, Takashi Hattori, Masanori Hara, Susumu Katsuragi | 2009-03-17 |
| 6383310 | Exhaust equipment member, internal combustion engine system using same, and method for producing such exhaust equipment member | Kenji Itoh, Keijiro Hayashi, Norio Takahashi | 2002-05-07 |
| 5784881 | Multi-part exhaust manifold assembly with welded connections | Kenji Itoh | 1998-07-28 |
| 5636323 | Speech communication apparatus having an echo canceler | Yuji Umemoto | 1997-06-03 |
| D376602 | Exhaust manifold for an internal combustion engine | Hideyuki Yamanaka | 1996-12-17 |
| D372250 | Exhaust manifold for an internal combustion engine | Hideyuki Yamanaka | 1996-07-30 |
| 5400399 | Speech communication apparatus equipped with echo canceller | Yuji Umemoto, Yuji Okuda, Masami Akamine, Koichi Ito | 1995-03-21 |
| 5379338 | Radiotelephone with handset talking function and hand-free talking function | Yuji Umemoto, Koichi Ito | 1995-01-03 |