Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10286501 | Laser welding apparatus, preventive maintenance method for reactor internal of nuclear power plant, and laser cutting apparatus | Koichi Kurosawa, Shinya Ohmori, Kazuhiro Nitta, Yoichi Mahara, Keigo Uchiyama | 2019-05-14 |
| 9067303 | Method of executing shot peening | Hisamitu Hatou, Noboru Saito, Fujio Yoshikubo, Masashi Fukaya, Yuji Matsui +1 more | 2015-06-30 |
| 7716961 | Method for executing water jet peening | Hisamitu Hatou, Noboru Saitou, Tomohiko Motoki, Tadashi Iijima, Yuichi Koide +1 more | 2010-05-18 |
| 6639962 | Preventive maintenance method and apparatus of a structural member in a reactor pressure vessel | Kunio Enomoto, Katsuhiko Hirano, Eisaku Hayashi, Sadato Shimizu, Satoshi Kanno +2 more | 2003-10-28 |
| 6519991 | Water jet peening apparatus | Katsuhiko Hirano, Kunio Enomoto, Eisaku Hayashi, Sadato Shimizu, Tetsuya Ishikawa +2 more | 2003-02-18 |
| 6425276 | Water jet peening apparatus | Katsuhiko Hirano, Kunio Enomoto, Eisaku Hayashi, Sadato Shimizu, Tetsuya Ishikawa +2 more | 2002-07-30 |
| 6345083 | Preventive maintenance method and apparatus of a structural member in a reactor pressure vessel | Kunio Enomoto, Katsuhiko Hirano, Eisaku Hayashi, Sadato Shimizu, Satoshi Kanno +2 more | 2002-02-05 |
| 6341151 | Preventive maintenance method and apparatus of a structural member in a reactor pressure vessel | Kunio Enomoto, Katsuhiko Hirano, Eisaku Hayashi, Sadato Shimizu, Satoshi Kanno +2 more | 2002-01-22 |
| 6240155 | Preventive maintenance apparatus for structural members in a nuclear pressure vessel | Koichi Kurosawa, Eisaku Hayashi, Sadato Shimizu, Minoru Ootaka, Fujio Yoshikubo +4 more | 2001-05-29 |
| 6058153 | Preventive maintenance apparatus for structural members in a nuclear pressure vessel | Koichi Kurosawa, Eisaku Hayashi, Sadato Shimizu, Minoru Ootaka, Fujio Yoshikubo +4 more | 2000-05-02 |
| 5977515 | Underwater laser processing device including chamber with partitioning wall | Keiichi Uraki, Toshitaka Satsuta, Akira Onuma, Mitsuo Nakamura, Tsutomu Onuma +4 more | 1999-11-02 |
| 5897062 | Fluid jet nozzle and stress improving treatment method using the nozzle | Kunio Enomoto, Katsuhiko Hirano, Masahiro Otaka, Kazuo Amano, Eisaku Hayashi +2 more | 1999-04-27 |
| 5793203 | Measurement system with noise reduction circuit | Eriko Takeda, Toshikazu Nishino, Masahiro Otaka, Fuminobu Takahashi | 1998-08-11 |
| 5749384 | Method and apparatus for performing preventive maintenance on the bottom portion of a reactor pressure vessel using cavitation bubbles | Eisaku Hayashi, Koichi Kurosawa, Fujio Yoshikubo, Hideyasu Furukawa, Kunio Enomoto +3 more | 1998-05-12 |
| 5553106 | Residual stress improving method for members in reactor pressure vessel | Kunio Enomoto, Masahiro Otaka, Kazuo Amano, Koichi Kurosawa, Eisaku Hayashi +2 more | 1996-09-03 |
| 5519741 | System for inspection and mending in a reactor vessel of a nuclear reactor | Masanori Suzuki, Shigeru Kajiyama, Yuji Hosoda | 1996-05-21 |