AA

Akira Arai

SE Seiko Epson: 33 patents #424 of 7,774Top 6%
HI Hitachi: 14 patents #2,889 of 28,497Top 15%
Yamaha: 8 patents #321 of 2,001Top 20%
NI Nomura Research Institute: 4 patents #4 of 109Top 4%
SC Shin Meiwa Industry Co.: 1 patents #23 of 74Top 35%
FI Fujifilm Business Innovation: 1 patents #3,579 of 5,238Top 70%
Overall (All Time): #35,477 of 4,157,543Top 1%
63
Patents All Time

Issued Patents All Time

Showing 26–50 of 63 patents

Patent #TitleCo-InventorsDate
6855265 Magnetic powder and isotropic bonded magnet Hiroshi Kato 2005-02-15
6852246 Magnetic powder and isotropic bonded magnet Hiroshi Kato 2005-02-08
6838014 Cooling roll, ribbon-shaped magnetic materials, magnetic powders and bonded magnets Hiroshi Kato 2005-01-04
6830633 Magnetic material manufacturing method, ribbon-shaped magnetic materials, powdered magnetic materials and bonded magnets Hiroshi Kato 2004-12-14
6796363 Cooling roll, ribbon-shaped magnetic materials, magnetic powders and bonded magnets Hiroshi Kato 2004-09-28
6660178 Magnetic powder and bonded magnet Hiroshi Kato 2003-12-09
6648989 Magnetic powder and bonded magnet Hiroshi Kato 2003-11-18
6627102 Magnetic powder, manufacturing method of magnetic powder and bonded magnets Hiroshi Kato 2003-09-30
6558482 Magnetic powder and isotropic bonded magnet Hiroshi Kato 2003-05-06
6554913 Method of manufacturing magnetic powder, magnetic powder and bonded magnets Hiroshi Kato 2003-04-29
6551418 Magnetic powder and isotropic bonded magnet Hiroshi Kato 2003-04-22
6536507 Cooling roll, method for manufacturing magnet material, ribbon shaped magnet material, magnetic powder and bonded magnet Hiroshi Kato 2003-03-25
6527875 Magnetic powder and isotropic bonded magnet Hiroshi Kato 2003-03-04
6521054 Magnetic powder and isotropic bonded magnet Hiroshi Kato 2003-02-18
6503415 Magnet powders and isotropic rare-earth bonded magnets 2003-01-07
6500277 Magnetic powder and isotropic bonded magnet Hiroshi Kato 2002-12-31
6478891 Ribbon shaped magnet material magnetic powder and rare earth bonded magnet Hiroshi Kato 2002-11-12
6401799 Method of manufacturing magnet material, ribbon-shaped magnet material, magnetic powder and bonded magnet Hiroshi Kato 2002-06-11
6317405 Method of and device for controlling light power to be used for recording on optical disk 2001-11-13
6187217 Thin magnet alloy belt and resin bonded magnet Hiroshi Kato 2001-02-13
5352302 Method of producing a rare-earth permanent magnet Fumio Takagi, Osamu Kobayashi, Seiji Ihara, Koji Akioka 1994-10-04
5127229 Gas turbine combustor Yoji Ishibashi, Hiroshi Inoue, Takashi Ohmori, Takashi Hashimoto, Fumio Kato +3 more 1992-07-07
5054280 Gas turbine combustor and method of running the same Yoji Ishibashi, Hiroshi Inoue, Takashi Ohmori, Takashi Hashimoto, Fumio Kato +3 more 1991-10-08
4993222 Method for burning gaseous fuel, wherein fuel composition varies Kazumi Iwai, Hiromi Koizumi, Katsuo Wada 1991-02-19
4977508 Internal combustion engine equipped with a torque controller Naoyuki Tanaka, Yozo Nakamura, Mitsuru Nakamura, Tsunehiro Endo, Yuzo Kadomukai 1990-12-11