YK

Yasuhiro Kawashima

Ricoh Company: 24 patents #864 of 9,818Top 9%
DE Denso: 15 patents #687 of 11,792Top 6%
Canon: 4 patents #10,118 of 19,416Top 55%
Fujitsu Limited: 2 patents #10,930 of 24,456Top 45%
Honda Motor Co.: 2 patents #8,527 of 21,052Top 45%
FL Fujitsu Nagano Systems Engineering Limited: 1 patents #3 of 8Top 40%
Overall (All Time): #57,989 of 4,157,543Top 2%
48
Patents All Time

Issued Patents All Time

Showing 26–48 of 48 patents

Patent #TitleCo-InventorsDate
7419241 Image forming apparatus Masatoshi Sakakitani 2008-09-02
7398687 Ultrasonic sensor Akira Nakajima, Hiroyuki Kani, Tadao Shimizu 2008-07-15
7392705 Ultrasonic sensor Hiroyuki Kani, Akira Nakajima 2008-07-01
7357431 Structure for mounting ultrasonic sensor on mounting member Yoshihisa Sato 2008-04-15
7317663 Ultrasonic sensor Hiroyuki Kani 2008-01-08
7313960 Ultrasonic sensor assembly 2008-01-01
7246523 Ultrasonic sensor Fumimasa Magane 2007-07-24
7240555 Ultrasonic sensor assembly 2007-07-10
6311973 Paper stacker apparatus used with facsimile device Shuuji Tanaka, Yasunobu Youda 2001-11-06
6182964 Paper stacker apparatus used with facsimile device Shuuji Tanaka, Yasunobu Youda 2001-02-06
6147781 Facsimile apparatus capable of removing a stack of recording sheets that have been ejected Shuuji Tanaka, Yasunobu Youda 2000-11-14
6128107 Image apparatus having different motors for separating and reading documents 2000-10-03
6085592 Ultrasonic sensor and obstruction detector having accurate obstruction detection capabilities 2000-07-11
6067170 Image forming apparatus for indicating completion of scanning for both sides of an original document Yasunobu Youda 2000-05-23
6005687 Imaging apparatus having different motors for separating and reading documents Shuji Tanaka 1999-12-21
5996990 Sheet feeding apparatus 1999-12-07
5951401 Slave driving force-transmitting mechanism for vehicle Kanji Kita, Shigeo Kurita, Tohru Mabuchi, Takeji Shino 1999-09-14
5764371 Image forming apparatus for indicating completion of scanning for both sides of an orginal document Yasunobu Youda 1998-06-09
5707293 Slide type universal joint Takashi Itoh, Shigeo Kurita, Nobuo Shimizu, Junichi Suto 1998-01-13
5610725 Communication system for managing data of resources of image forming unit Yasuo Kawada, Hidenori Sakai, Makoto Obu, Katsuhiro Echigo, Hidetoshi Yano +1 more 1997-03-11
5504590 Communication system for managing data of resources of image forming unit Yasuo Kawada, Hidenori Sakai, Makoto Obu, Katsuhiro Echigo, Hidetoshi Yano +1 more 1996-04-02
5497250 Document scanning apparatus having a stamp and method for controlling the stamping position 1996-03-05
5493365 Operating section for an image forming apparatus Hideaki Matsui, Nobuaki Tomidokoro, Shigeru Yoshiki, Shigeru Watanabe, Shinichi Kawahara +6 more 1996-02-20