Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6639962 | Preventive maintenance method and apparatus of a structural member in a reactor pressure vessel | Katsuhiko Hirano, Eisaku Hayashi, Ren Morinaka, Sadato Shimizu, Satoshi Kanno +2 more | 2003-10-28 |
| 6612910 | Liquid crystal glass substrate, method of cutting the liquid crystal glass substrate, cutter for the liquid crystal glass substrate and display using the liquid crystal glass substrate | Katsuhiko Hirano, Makoto Hayashi, Makoto Kitano, Satoshi Kanno | 2003-09-02 |
| 6519991 | Water jet peening apparatus | Katsuhiko Hirano, Eisaku Hayashi, Sadato Shimizu, Ren Morinaka, Tetsuya Ishikawa +2 more | 2003-02-18 |
| 6425276 | Water jet peening apparatus | Katsuhiko Hirano, Eisaku Hayashi, Sadato Shimizu, Ren Morinaka, Tetsuya Ishikawa +2 more | 2002-07-30 |
| 6345083 | Preventive maintenance method and apparatus of a structural member in a reactor pressure vessel | Katsuhiko Hirano, Eisaku Hayashi, Ren Morinaka, Sadato Shimizu, Satoshi Kanno +2 more | 2002-02-05 |
| 6341151 | Preventive maintenance method and apparatus of a structural member in a reactor pressure vessel | Katsuhiko Hirano, Eisaku Hayashi, Ren Morinaka, 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 |
| 5897062 | Fluid jet nozzle and stress improving treatment method using the nozzle | Katsuhiko Hirano, Masahiro Otaka, Kazuo Amano, Eisaku Hayashi, Sadato Shimizu +2 more | 1999-04-27 |
| 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, Ren Morinaka +3 more | 1998-05-12 |
| 5553106 | Residual stress improving method for members in reactor pressure vessel | Masahiro Otaka, Kazuo Amano, Koichi Kurosawa, Eisaku Hayashi, Ren Morinaka +2 more | 1996-09-03 |
| 5414356 | Fluxmeter including squid and pickup coil with flux guiding core and method for sensing degree of deterioration of an object | Toshihiko Yoshimura, Tasuku Shimizu, Yuichi Ishikawa, Masahiro Otaka, Yuko Koguchi +3 more | 1995-05-09 |
| 5329099 | Method of maintaining housing of reactor pressure vessel and heat treatment equipment therefor | Masahiro Otaka, Kunio Hasegawa, Makoto Hayashi, Shinji Sakata, Hideyo Saito +4 more | 1994-07-12 |
| 5305361 | Method of and apparatus for water-jet peening | Masahiro Otaka, Koichi Kurosawa, Hideyo Saito, Hiroshi Tsujimura, Yasumasa Tamai +2 more | 1994-04-19 |
| 5215829 | Method for strengthening pressure resistance of a hollowed metallic structure and a pressure resistant structure made thereby | Takashi Matsunobu, Kenzi Aizawa, Kazumi Anazawa | 1993-06-01 |
| 5134368 | Apparatus for magnetically detecting degradation of metal material using superconductor sensor system and reference material data comparison | Masahiro Otaka, Kunio Hasegawa, Makoto Hayashi, Tasuku Shimizu, Kazuo Takaku | 1992-07-28 |
| 5059903 | Method and apparatus utilizing a magnetic field for detecting degradation of metal material | Masahiro Otaka, Kunio Hasegawa, Makoto Hayashi, Tasuku Shimizu, Kazuo Takaku | 1991-10-22 |
| 4772336 | Method of improving residual stress in circumferential weld zone | Tasuku Shimizu, Shinji Sakata, Terunobu Koike, Nobuo Shimizu, Tsukasa Ikegami | 1988-09-20 |
| 4731131 | Method of subjecting welded structure to heat treatment | Shinji Sakata, Tasuku Shimizu, Hirotsugu Fujimoto | 1988-03-15 |
| 4353255 | Method for determining shape of crack | Yoshio Fukuda, Tsutomu Masumoto | 1982-10-12 |
| 4229235 | Heat-treating method for pipes | Noriaki Matsuda | 1980-10-21 |
| 4192728 | Method for supplying powder into a coating tank and its apparatus | Uhee Kikuchi, Masanori Kobori, Suguru Kimura, Satoru Kamiyama, Nobuaki Todoroki +1 more | 1980-03-11 |