Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11028893 | Elastic member and wire for elastic member | Toshio Kazama, Shigeki Ishikawa, Takeshi Suzuki | 2021-06-08 |
| 10995811 | Coil spring | Toshinori Watanabe, Hidemasa Ito, Fumio Yamamoto, Fumio Takahashi | 2021-05-04 |
| 10591011 | Elastic member and wire for elastic member | Toshio Kazama, Shigeki Ishikawa, Takeshi Suzuki | 2020-03-17 |
| 10118208 | Hollow spring utilizing seamless steel pipe | Kotaro Toyotake, Koji Iwaya, Tomoyuki Minami | 2018-11-06 |
| 9804198 | Alloy material, contact probe, and connection terminal | Teruo Anraku, Masayuki Ainoya, Tomohiro Kubota, Kotaro Toyotake, Tomoyuki Minami +1 more | 2017-10-31 |
| 9593731 | Ring-shaped spring and method for manufacturing same | Fumio Takahashi | 2017-03-14 |
| 9482302 | Process for manufacturing seamless steel pipe, hollow spring utilizing seamless steel pipe | Kotaro Toyotake, Koji Iwaya, Tomoyuki Minami | 2016-11-01 |
| 9056355 | Lathe machining member | Toshio Kazama, Tomohiro Kawarabayashi | 2015-06-16 |
| 9041194 | Pressure unit | Michiya Masuda, Ichiro Sasuga, Nobuharu Kato, Kengo TSURUGAI | 2015-05-26 |
| 8814586 | Connector | Shigeki Ishikawa, Makoto Saito, Michiya Masuda | 2014-08-26 |
| 8312853 | Valve spring device and valve train of engine using the same | Kazuo Iwata, Jun Tominaga, Norihiro Tajima | 2012-11-20 |
| 8297603 | Spring retainer and spring system | Hironobu Imaizumi | 2012-10-30 |
| 8025039 | Valve spring device and valve train of internal combustion engine using the same | Kazuo Iwata, Jun Tominaga, Norihiro Tajima, Takeshi Yabushita | 2011-09-27 |
| 8007716 | Steel wire for high strength spring excellent in workability and high strength | Sumie Suda, Nobuhiko Ibaraki, Naoki Terakado, Satoru Tendo, Tadayoshi Fujiwara +1 more | 2011-08-30 |
| 7997242 | Spring retainer and spring system | Hironobu Imaizumi | 2011-08-16 |
| 7766312 | Coil spring | Satoru Tendo | 2010-08-03 |
| 7717411 | High-strength stainless steel spring and method of manufacturing the same | Hiromu Izumida, Nozomu Kawabe, Shinei Takamura, Teruyuki Murai | 2010-05-18 |
| 7458356 | Spring apparatus and valve train of internal combustion engine using the same | Kazuo Iwata, Takeyoshi Shimbori, Koichiro Yamada | 2008-12-02 |
| 7074282 | Steel wire rod for hard drawn spring, drawn wire rod for hard drawn spring and hard drawn spring, and method for producing hard drawn spring | Nobuhiko Ibaraki, Atushi Inada, Sumie Suda, Satoru Tendoh, Tadayoshi Fujiwara +1 more | 2006-07-11 |
| 6440021 | Tensioner for applying tension to force transmitting member | Tomokazu Kaibuki | 2002-08-27 |
| 6024346 | Coil spring resistant to permanent set and fatigue | Takeshi Yabushita, Mitsutoshi Kaneyasu, Michihiko Ayada | 2000-02-15 |
| 5246215 | Spring seat member with notch for ground spring end | Yuichi Nagase | 1993-09-21 |
| 4993376 | Spring system | Taizo Fukutome, Atsushi Ishida, Akihiko Inooku, Kaoru Hatayama, Yuichi Nagase +2 more | 1991-02-19 |
| 4909866 | High strength spring and its process of manufacturing | Makoto Abe, Tetsuyuki Taniguchi, Tsuyoshi Kuriki, Naoki Terakado, Kaoru Hatayama | 1990-03-20 |