Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9109884 | Method and equipment for manufacturing electric resistance welded steel pipe | Tomohiro Inoue, Shigeto Sakashita, Daijiro Yuasa, Hiroyasu Yokoyama, Yukinori Iizuka | 2015-08-18 |
| 9000320 | Method of manufacturing electric resistance welding pipe having excellent characterization of welded seam | Takatoshi Okabe, Hiroyasu Yokoyama, Yuji Sugimoto, Muneyoshi Murakami, Osamu Shiotani +3 more | 2015-04-07 |
| 8912462 | Method of manufacturing electric resistance welding pipes having excellent characterization of welded seams | Takatoshi Okabe, Hiroyasu Yokoyama, Yuji Sugimoto, Yoshifumi Fujioka, Kei Sakata +5 more | 2014-12-16 |
| 8578580 | Quality control method and manufacturing method for pipe | Yukinori Iizuka, Hiroyasu Yokoyama, Tomohiro Inoue, Shigeto Sakashita | 2013-11-12 |
| 8393217 | Ultrasonic flaw detection apparatus and ultrasonic flaw detection method for pipe | Yukinori Iizuka, Hiroyasu Yokoyama, Tomohiro Inoue, Shigeto Sakashita | 2013-03-12 |
| 8328957 | Electric resistance welded steel pipe with excellent weld toughness for line pipe | Hiroyasu Yokoyama, Takatoshi Okabe, Yukinori Iizuka | 2012-12-11 |
| 8296932 | Manufacturing equipment for electric resistance welding pipes having excellent characterization for welded seam | Takatoshi Okabe, Hiroyasu Yokoyama, Hiroyuki Shirosawa, Tetsuro Sawaki, Yuji Sugimoto +2 more | 2012-10-30 |
| 8266964 | Calibration of an ultrasonic flaw detector and quality control and production methods for a tubular body | Yukinori Iizuka, Hiroyasu Yokoyama, Tomohiro Inoue, Shigeto Sakashita | 2012-09-18 |
| 6374494 | Compound roll for thin cold rolled steel strip and method of manufacturing same | Osamu Sonobe, Hirotaka Kano, Ikuo Yarita, Akihiko Fukuhara, Nobuaki Gamo | 2002-04-23 |
| 5875663 | Rolling method and rolling mill of strip for reducing edge drop | Junichi Tateno, Ikuo Yarita, Hisao IMAI, Tomohiro Kaneko, Yasuhiro Yamada +1 more | 1999-03-02 |
| 5799527 | Method of producing a stainless steel sheet having excellent surface brightness | Osamu Sonobe, Eisuke Kawazumi, Yoshikazu Seino, Takashi Akazawa, Kazusito Okada | 1998-09-01 |
| 5279141 | Apparatus for pre-processing stainless steel strip intended to be cold-rolled | Ikuo Yarita, Akihiko Fukuhara, Tomio Komatu, Akira Kishida | 1994-01-18 |
| 5218852 | Multi-roll cluster rolling apparatus | Yuichiro Watanabe, Ikuo Yarita | 1993-06-15 |
| 5003804 | Method for pre-processing stainless steel strip intended to be cold-rolled | Ikuo Yarita, Akihiko Fukuhara, Tomio Komatu, Akira Kishida | 1991-04-02 |
| 4885042 | Method and apparatus for preliminary treatment of stainless steel for cold rolling | Akihiko Fukuhara, Tomio Komatu, Masanori Kitahama, Hideo Abe, Akira Kishida +2 more | 1989-12-05 |
| 4769178 | Cold-rolling lube oil for metallic materials | Hideo Abe, Toru Sasaki, Koichi Ito, Takeshi Yoshimoto, Hiroyuki Nagamori +1 more | 1988-09-06 |
| 4746448 | Cold rolling oil for steels | Hideo Abe, Toru Sasaki, Takeshi Yoshimoto, Hiroyuki Nagamori, Hiroyuki Matsuda | 1988-05-24 |