Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11331703 | Piercer plug and method of manufacturing the same | Yasuyoshi Hidaka, Yuichi Yamanari, Yuji Yamamoto, Tatsuya Miyai | 2022-05-17 |
| 10888906 | Method of manufacturing piercer plug | Yasuyoshi Hidaka, Naoya Shirasawa, Yuichi Yamanari | 2021-01-12 |
| 10300513 | Piercing plug and manufacturing method of piercing plug | Yosuke Tatebayashi, Yasuyoshi Hidaka, Kouji Nakaike, Takateru Inage | 2019-05-28 |
| 10150147 | Piercing plug | Atsushi Nosaka, Yasuyoshi Hidaka, Ryuutarou Ogata | 2018-12-11 |
| 9914159 | Method for producing plug for piercing-rolling | Tomohiro Yamamoto, Yasuyoshi Hidaka | 2018-03-13 |
| 9845525 | Equipment system for producing piercing-rolling plug | Tomohiro Yamamoto, Yasuyoshi Hidaka | 2017-12-19 |
| 9764366 | Method for regenerating a plug for use in a piercing machine | Yasuyoshi Hidaka, Kazuhiro Shimoda, Yosuke Tatebayashi | 2017-09-19 |
| 9352370 | Plug for hot tube-making | Yasuyoshi Hidaka | 2016-05-31 |
| 9333544 | Plug used in piercing machine | Yasuyoshi Hidaka, Kazuhiro Shimoda | 2016-05-10 |
| 9312546 | Stainless steel material for a separator of a solid polymer fuel cell and a solid polymer fuel cell using the separator | Hideya Kaminaka, Junko IMAMURA | 2016-04-12 |
| 8544306 | Plug, piercing-rolling mill, and method of producing seamless tube by using the same | Yasuyoshi Hidaka, Kazuhiro Shimoda, Tomio Yamakawa | 2013-10-01 |
| 8082768 | Piercing and rolling plug, method of regenerating such piercing and rolling plug, and equipment line for regenerating such piercing and rolling plug | Yasuyoshi Hidaka, Kazuhiro Shimoda, Kouji Nakaike, Naoya Hirase, Takateru Inage +5 more | 2011-12-27 |