Issued Patents All Time
Showing 26–50 of 202 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10487373 | Steel pipe for line pipe and method of manufacturing the same | Taro OE, Keiichi Kondo, Hiroki Kamitani | 2019-11-26 |
| 10480043 | Seamless steel pipe for line pipe and method for producing the same | Yukimasa Ueda | 2019-11-19 |
| 10443114 | Steel material and oil-well steel pipe | — | 2019-10-15 |
| 10415125 | Thick-wall oil-well steel pipe and production method thereof | Keiichi Kondo, Koji Nagahashi | 2019-09-17 |
| 10407758 | Steel for oil country tubular goods and method of producing the same | Tomohiko Omura, Kaori Kawano, Akihiro Sakamoto, Kazuo Okamura, Kenji Yamamoto +3 more | 2019-09-10 |
| 10392675 | Seamless steel pipe and method for producing the same | Yukimasa Ueda | 2019-08-27 |
| 10287645 | Method for producing high-strength steel material excellent in sulfide stress cracking resistance | Keiichi Kondo | 2019-05-14 |
| 10233520 | Low-alloy steel pipe for an oil well | Atsushi Soma | 2019-03-19 |
| 10131962 | Seamless steel pipe and method for producing same | Kenji Kobayashi, Hiroyuki Nagayama | 2018-11-20 |
| 10094008 | Seamless steel pipe for line pipe used in sour environments | Keiichi Kondo, Kenji Kobayashi | 2018-10-09 |
| 10036078 | Low alloy oil well steel pipe and method for manufacturing same | Tomohiko Omura, Keiichi Kondo | 2018-07-31 |
| 10001735 | Fixing device and image forming apparatus | Takahiro Imada, Masaaki Yoshikawa, Kenji Ishii, Hiroshi Yoshinaga, Naoki Iwaya +9 more | 2018-06-19 |
| 9989904 | Fixing device and image forming apparatus for preventing separation of a fixing rotator and a holder | Hajime Gotoh, Takuya Seshita, Takahiro Imada | 2018-06-05 |
| 9983526 | Fixing device and image forming apparatus including same | Takeshi Uchitani, Masahiko Satoh, Kenji Ishii, Tadashi Ogawa, Teppei Kawata +19 more | 2018-05-29 |
| 9909198 | Method for producing a low alloy steel for oil country tubular goods having excellent sulfide stress cracking resistance | Tomohiko Omura, Kaori Kawano, Akihiro Sakamoto, Kazuo Okamura, Kenji Yamamoto +1 more | 2018-03-06 |
| 9777352 | Oil-well steel pipe having excellent sulfide stress cracking resistance | Atsushi Soma, Tomohiko Omura, Mitsuhiro Numata, Toru Takayama, Masanao Seo | 2017-10-03 |
| 9727011 | Image forming apparatus and image forming method | Yutaka Ikebuchi, Hiroshi Yoshinaga, Takayuki Seki, Ryuuichi Mimbu, Shuntaro Tamaki +5 more | 2017-08-08 |
| 9715197 | Fixing device and image forming apparatus incorporating fixing device | Takuya Seshita, Takahiro Imada, Hajime Gotoh, Akira Suzuki, Motoyoshi Yamano | 2017-07-25 |
| 9715203 | Fixing device and image forming apparatus including same | Takeshi Uchitani, Masahiko Satoh, Kenji Ishii, Tadashi Ogawa, Teppei Kawata +19 more | 2017-07-25 |
| 9685824 | Contactless method of supplying power | Yasuhiro Iijima, Masahiro Tomiki, Yosuke Tanida | 2017-06-20 |
| 9651175 | Seamless steel pipe for line pipe | Yukimasa Ueda, Kei Murata, Yasuyoshi Hidaka | 2017-05-16 |
| 9650219 | Paper conveying device and image forming device | Arinobu Yoshiura, Hideo Nagafuji, Kohichi Utsunomiya, Kiho Sai, Shohei Saito +2 more | 2017-05-16 |
| 9599940 | Fixing device with nip forming member having a high thermal-conductive layer with a low thermal conductive portion | Motoyoshi Yamano, Kohichi Utsunomiya, Hiromasa Takagi, Kenji Ishii, Takayuki Seki +6 more | 2017-03-21 |
| 9557692 | Fixing device and image forming apparatus | Takahiro Imada, Masaaki Yoshikawa, Kenji Ishii, Hiroshi Yoshinaga, Naoki Iwaya +9 more | 2017-01-31 |
| 9546408 | Quenching method for steel pipe | Akihiro Sakamoto, Kazuo Okamura, Kenji Yamamoto, Tomohiko Omura | 2017-01-17 |