KA

Keiji Arai

Fujitsu Limited: 6 patents #5,180 of 24,456Top 25%
KM Konica Minolta: 4 patents #901 of 2,718Top 35%
HI Hitachi: 3 patents #10,712 of 28,497Top 40%
SC Seikosha Co.: 1 patents #184 of 312Top 60%
Overall (All Time): #313,960 of 4,157,543Top 8%
15
Patents All Time

Issued Patents All Time

Showing 1–15 of 15 patents

Patent #TitleCo-InventorsDate
12174584 Electrostatic charge image developing toner 2024-12-24
10698329 Electrostatic image developer Futoshi Kadonome, Junichi Furukawa, Ikuko Sakurada 2020-06-30
10509338 Two-component developer for developing electrostatic latent image Ikuko Sakurada, Satoshi Uchino, Shinya Obara, Futoshi Kadonome 2019-12-17
10338489 Two-component developer and image forming method using the same Futoshi Kadonome, Junichi Furukawa 2019-07-02
7935891 Wiring board manufacturing method Takashi Shuto, Kenji Takano, Kenji Iida, Kenichiro Abe, Kiyotaka Seyama 2011-05-03
7377030 Wiring board manufacturing method Takashi Shuto, Kenji Takano, Kenji IlDA, Kenichiro Abe, Kiyotaka Seyama 2008-05-27
6531661 Multilayer printed circuit board and method of making the same Katsumi Uchikawa, Kazuhiko Iijima, Naoto Maezawa 2003-03-11
6021833 Manufacturing line for multi-layered printed circuit boards Katsumi Uchikawa, Kouji Takamachi, Tohru Matsui, Ryo Fujita, Tohru Goto +5 more 2000-02-08
5538616 Process for copper plating a wiring board 1996-07-23
5448021 Copper plating process and wiring board 1995-09-05
5287026 Superconducting magnetic levitation apparatus Masahiro Ogihara, Katsuzo Aihara, Masaki Satoh 1994-02-15
D333641 Motorcycle Shigeki Sakaguchi, Nobuyuki Shiwa 1993-03-02
4777396 Rotor of induction motor Motoya Ito, Noriyoshi Takahashi, Noboru Fujimoto, Yoshitaka Kojima 1988-10-11
4763155 Shutter control device for camera Hajime Oda, Hiroyuki Saito, Atsushi Misawa, Toshiya Tamura, Michio Taniwaki +1 more 1988-08-09
4761581 Magnetic wedge Masatoshi Watanabe, Miyoshi Takahashi, Masaki Sato, Motoya Ito 1988-08-02