Issued Patents All Time
Showing 1–25 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8960681 | Cylinder head gasket | Yasumaro Takeda, Toru Takasu, Ryosuke Fujiki, Kazuya Yoshijima | 2015-02-24 |
| 8598405 | Waste solution solidifying agent, process for preparing the same and use of the same | Masazumi Sasabe, Seiji Kato, Atsushi Tachibana, Kenji Kadonaga, Shigeru Oka | 2013-12-03 |
| 7250459 | Absorbent resin composition | Yorimichi Dairoku, Kinya Nagasuna, Nobuyuki Harada, Yoshihiro Motono, Kunihiko Ishizaki | 2007-07-31 |
| 6992144 | Water-absorbent agent, method for production thereof, and water-absorbent composition | Yorimichi Dairoku, Kinya Nagasuna, Nobuyuki Harada, Yoshihiro Motono, Kunihiko Ishizaki | 2006-01-31 |
| 6809158 | Water-absorbing agent and process for producing the same | Hiroyuki Ikeuchi, Nobuyuki Harada | 2004-10-26 |
| RE38444 | Absorbing agent, process of manufacturing same, and absorbent product containing same | Katsuyuki Wada, Kinya Nagasuna, Shin-ichi Fujino | 2004-02-24 |
| 6561150 | Engine valve characteristic controller | Shinichiro Kikuoka, Yoshihito Moriya, Hideo Nagaosa, Shuuji Nakano | 2003-05-13 |
| 6517601 | Three-dimensional cam and production method thereof | Shuuji Nakano, Yoshihito Moriya, Hideo Nagaosa, Shinichiro Kikuoka | 2003-02-11 |
| 6476155 | Method of producing a hydrophilic resin | Katsuyuki Wada, Masatoshi Nakamura, Kinya Nagasuna | 2002-11-05 |
| 6415753 | Variable valve apparatus of internal combustion engine and method of varying the open-close characteristic of an engine valve | Hideo Nagaosa, Yoshihito Moriya, Shuuji Nakano, Shinichiro Kikuoka | 2002-07-09 |
| 6280120 | Adhesion preventing method and support body extracting method | Kouichi Okamoto, Kenji Kadonaga, Yohei Murakami, Akira Hattori | 2001-08-28 |
| 6257590 | Sealing structure and method of mounting piston ring structural body for use in the sealing stucture | Teruo Kumai, Michio Okamoto | 2001-07-10 |
| 6180724 | Process for manufacturing an absorbing agent and absorbent material | Katsuyuki Wada, Kinya Nagasuna, Shin-ichi Fujino | 2001-01-30 |
| 6054541 | Process of manufacturing precursor of an absorbing agent | Katsuyuki Wada, Kinya Nagasuna, Shin-ichi Fujino | 2000-04-25 |
| 5866678 | Absorbent and method for production of absorbent resin | Katsuhiro Kajikawa, Kinya Nagasuna | 1999-02-02 |
| 5760080 | Absorbing agent, process of manufacturing same, and absorbent product containing same | Katsuyuki Wada, Kinya Nagasuna, Shin-ichi Fujino | 1998-06-02 |
| 5713262 | Engine piston having a recess defined in the lower surface of the head | Masanori Sugiyama | 1998-02-03 |
| 5610208 | Water-absorbent agent, method for production thereof, and water-absorbent composition | Yorimichi Dairoku, Kinya Nagasuna, Nobuyuki Harada, Yoshihiro Motono, Kunihiko Ishizaki | 1997-03-11 |
| 5574121 | Process for preparing an absorbent resin crosslinked with a mixture of trimethylolpropane diacrylate and triacrylate | Yoshio Irie, Nobuyuki Harada, Kinya Nagasuna, Kohichi Hirota, Hideaki Nagano +1 more | 1996-11-12 |
| 5478879 | Method for production of absorbent resin | Katsuhiro Kajikawa, Kinya Nagasuna, Yoshio Irie | 1995-12-26 |
| 5422405 | Method for production of absorbent resin | Yorimichi Dairoku, Kinya Nagasuna, Kazutaka Yano, Toru Yanase | 1995-06-06 |
| 4874437 | Method of adjusting hardness of metallic material | Masanobu Murakosi | 1989-10-17 |
| 4734478 | Water absorbing agent | Tsuneo Tsubakimoto, Tadao Shimomura, Yoshio Irie, Kazumasa Kimura, Takumi Hatsuda | 1988-03-29 |
| 4497335 | Control valve of exhaust gas recirculation apparatus | — | 1985-02-05 |
| 4349003 | Exhaust gas recirculation control valve | — | 1982-09-14 |