AA

Akihiro Arai

PE Pentax: 28 patents #47 of 761Top 7%
Canon: 26 patents #2,250 of 19,416Top 15%
PA Panasonic: 24 patents #737 of 21,108Top 4%
SH Shimadzu: 13 patents #92 of 2,007Top 5%
Sumitomo Electric Industries: 11 patents #2,408 of 21,551Top 15%
AK Asahi Kogaku Kogyo K.K.: 5 patents #14 of 180Top 8%
TK Tokyo Kogaku Kikai: 3 patents #27 of 143Top 20%
SO Sony: 2 patents #12,963 of 25,231Top 55%
TO Topcon: 2 patents #309 of 684Top 50%
AK Asahi Kogaku Kabushiki Kaisha: 1 patents #9 of 73Top 15%
Overall (All Time): #10,812 of 4,157,543Top 1%
115
Patents All Time

Issued Patents All Time

Showing 76–100 of 115 patents

Patent #TitleCo-InventorsDate
5915134 Switching device with DX contacts for a camera Yutaka Kamijo 1999-06-22
5839010 Switch with locking resilient tabs Yutaka Kamijo 1998-11-17
5790504 Integrated optical head with an emitting light splitting polarizing prism and a detecting light splitting polarizing element Takao Hayashi, Toru Nakamura 1998-08-04
5758219 Brake apparatus of reciprocally rotating member and mirror braking apparatus in single lens reflex camera 1998-05-26
5737658 Barrier device for camera 1998-04-07
5678107 Switching device for a camera Yutaka Kamijo 1997-10-14
5568217 Back cover lock mechanism of a camera Yoshinori Ono 1996-10-22
5550612 Focal point correction apparatus 1996-08-27
5519466 Electronically controlled camera 1996-05-21
5485236 Camera Hisashi Tatamiya 1996-01-16
5475458 Albada finder 1995-12-12
5459541 Camera having a picture image area and field of view varying mechanism Kiyoshi Kawano, Yoshinori Ono 1995-10-17
5329327 Built-in flash system Tetsuji Shono 1994-07-12
5313244 Camera 1994-05-17
5305032 Sealing member for waterproof camera 1994-04-19
5287135 Built-in flash system Tetsuji Shono 1994-02-15
5255026 Stereo eye fundus camera Takeyuki Kato 1993-10-19
5241852 Apparatus and method for testing the waterproofness of a camera casing Yasuyuki Takahashi 1993-09-07
5141302 Intraocular length measuring instrument Hideki Hatanaka, Akihiko Sekine, Isao Minegishi, Fumio Ohtomo 1992-08-25
5066967 Single-lens reflex camera with built-in flash Masato Yamamoto, Susumu Koshino, Toshimasa Yamanaka, Koji Sato, Masahiro Koinuma 1991-11-19
5055976 Strobe flashing device 1991-10-08
5040010 Camera with film cartridge holder 1991-08-13
5040017 Shutter apparatus having two blade members pivoted about one point 1991-08-13
4974787 Film guide device Masao Sato 1990-12-04
4949115 Automatic focusing projector Yasuyuki Tejima, Hideaki Yuda, Saburo Sugawara, Shigeo Toji 1990-08-14