| 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 |