Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10570471 | Equipment line for manufacturing seamless steel tube or pipe and method of manufacturing high-strength stainless steel seamless tube or pipe for oil wells using the equipment line | Shunsuke Sasaki, Tatsuro Katsumura | 2020-02-25 |
| 10441982 | Plug for rolling of seamless steel pipe, method for manufacturing the same and method for manufacturing seamless steel pipe using the same | Takaaki Iguchi, Tatsuro Katsumura | 2019-10-15 |
| 9618070 | Spring steel and method for manufacturing the same | Minoru Honjo, Kazukuni Hase | 2017-04-11 |
| 8608874 | Spring steel and method for manufacturing the same | Minoru Honjo, Kazukuni Hase | 2013-12-17 |
| 8302309 | Process for producing bearing device for wheel | Isao Hirai, Kohei Yoshino, Takayasu Takubo, Kazuhiko Yoshida, Kazukuni Hase +2 more | 2012-11-06 |
| 8118953 | Method for producing steel part having long rolling contact fatigue life | Takashi Iwamoto, Kunikazu Tomita, Takaaki Toyooka, Hisato Nishisaka, Masao Goto +1 more | 2012-02-21 |
| 7827842 | Hot forging facility | Kazukuni Hase, Takaaki Toyooka | 2010-11-09 |
| 7806992 | Hot forged product with excellent fatigue strength, method for making the same, and machine structural part made from the same | Kazukuni Hase, Takaaki Toyooka | 2010-10-05 |
| 5294835 | Epoxy resin composition for semiconductor encapsulation and semiconductor device using the same | Kazumasa Igarashi, Megumu Nagasawa, Tsutomu Nishioka, Kazuhiro Ikemura, Hideyuki Usui +3 more | 1994-03-15 |