Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11530471 | Rail and method for manufacturing same | Keisuke Ando, Satoshi Igi | 2022-12-20 |
| 11492689 | Rail and method for manufacturing same | Keisuke Ando, Satoshi Igi | 2022-11-08 |
| 11401591 | Method for selecting rail steel and wheel steel | Minoru Honjo, Katsuyuki Ichimiya, Kazukuni Hase | 2022-08-02 |
| 11111555 | Method for producing rail | Minoru Honjo, Katsuyuki Ichimiya, Kazukuni Hase | 2021-09-07 |
| 10253397 | Pearlitic rail and method for manufacturing pearlitic rail | Kiyoshi Uwai, Shigeru Endo, Moriyasu Yamaguchi | 2019-04-09 |
| 10100380 | Rail cooling device | Ryo Matsuoka, Makoto Nakaseko, Rinya Kojo, Tomoo Horita, Hideki Takahashi +3 more | 2018-10-16 |
| 9988696 | Rail cooling method and rail cooling device | Ryo Matsuoka, Makoto Nakaseko, Rinya Kojo, Tomoo Horita, Hideki Takahashi +3 more | 2018-06-05 |
| 9139887 | Bearing steel and ingot material for bearing having excellent rolling contact fatigue life characteristics and method for manufacturing the same | Minoru Honjo, Kazukuni Hase, Shinji Mitao | 2015-09-22 |
| 8404178 | High-strength pearlitic steel rail having excellent delayed fracture properties | Minoru Honjo, Shinichi Suzuki, Nobuo Shikanai | 2013-03-26 |
| 8361382 | High-strength pearlitic steel rail having excellent delayed fracture properties | Minoru Honjo, Shinichi Suzuki, Nobuo Shikanai | 2013-01-29 |
| 7955445 | Internal high hardness type pearlitic rail with excellent wear resistance and rolling contact fatigue resistance and method for producing same | Minoru Honjo, Shinichi Suzuki, Kimihiro Nishimura, Shinji Mitao, Nobuo Shikanai | 2011-06-07 |
| 7692187 | Organic semiconductor material and organic device using the same | Masayuki Chikamatsu, Atsushi Itakura, Satoru Shimada, Yuji Yoshida, Reiko Azumi +1 more | 2010-04-06 |
| 6706125 | Linear shape steel excellent in joint fatigue characteristics and production method therefor | Yasushi Morikage, Keniti Amano, Takanori Okui, Keizou Taoka, Hironori Miura +2 more | 2004-03-16 |
| 6699338 | Method of manufacturing corrosion resistant steel materials | Kazuhiko Shiotani, Fumimaru Kawabata, Keniti Amano | 2004-03-02 |
| 6451134 | 590MPa class heavy gauge H-shaped steel having excellent toughness and method of producing the same | Fumimaru Kawabata, Keniti Amano | 2002-09-17 |
| 6440235 | Method of manufacturing high productive and high strength rolled H-shaped | Fumimaru Kawabata, Keniti Amano | 2002-08-27 |
| 6013748 | Aromatic ester compound and second-order non-linear optical material therewith | Hiroo Matsuda, Takashi Fukuda, Shinji Yamada, Masao Kato, Xuan-ming Duan +2 more | 2000-01-11 |
| 6007644 | Heavy-wall H-shaped steel having high toughness and yield strength and process for making steel | Akio Ohmori, Fumimaru Kawabata, Keniti Amano | 1999-12-28 |
| 5882447 | Heavy-wall structural steel and method | Kiyoshi Uchida, Fumimaru Kawabata, Keniti Amano, Takanori Okui | 1999-03-16 |
| 5743972 | Heavy-wall structural steel and method | Kiyoshi Uchida, Fumimaru Kawabata, Keniti Amano, Takanori Okui | 1998-04-28 |