TK

Takahisa Koike

Ricoh Company: 28 patents #700 of 9,818Top 8%
Overall (All Time): #137,971 of 4,157,543Top 4%
28
Patents All Time

Issued Patents All Time

Showing 1–25 of 28 patents

Patent #TitleCo-InventorsDate
11203201 Image recording apparatus, image recording method, and recording medium Jun Shiori, Takuya Murata, Hiroyuki Kiguchi, Ko Tokumaru, Yuji Tanaka 2021-12-21
11171582 Drive device for correcting angular deviation between shafts 2021-11-09
11006016 Image forming apparatus, image forming method, and storage medium Ko Tokumaru, Jun Shiori, Takuya Murata, Yuji Tanaka 2021-05-11
10715062 Driving apparatus, driving system, robot, image forming apparatus, and conveying apparatus 2020-07-14
10680471 Permanent magnet motor, position estimation apparatus and motor drive control apparatus Takashi Hashimoto, Haruyuki Suzuki, Eiki Yoshimizu, Norihiro Yamamoto 2020-06-09
10298156 Driving device, drive system, image forming apparatus, conveyance device, and driving method 2019-05-21
9376287 Sheet conveying device, image forming apparatus, sheet thickness detection system Yoshihiro Asano, Minoru Takahashi 2016-06-28
9022386 Medium conveying apparatus, image forming apparatus, medium conveying system, and medium conveying method Masashi Kasamai, Yusuke Ishizaki 2015-05-05
8989608 Rotating mechanism driving apparatus, image forming apparatus, non-transitory readable medium in which computer program for executing method for driving the rotating mechanism is recorded, rotating mechanism driving system and image forming system Yoshihiro Asano 2015-03-24
8660473 Intermediate transfer device, image forming apparatus and secondary transfer method Masahiro Ashikawa, Hideyuki Takayama, Yoshihiro Asano, Minoru Takahashi 2014-02-25
8639174 To-be-transferred object length measurement device and image forming apparatus and computer-readable storage medium Masahiro Ashikawa, Tatsuya Watahiki, Minoru Takahashi, Hideyuki Takayama, Masaru Yamagishi +6 more 2014-01-28
8561985 Conveying device, image forming apparatus, and program Yuusuke Ishizaki 2013-10-22
8474816 Sheet conveying device, image forming apparatus, sheet conveying motor control system, and storage medium Yuusuke Ishizaki, Minoru Takahashi 2013-07-02
8364064 Intermediate transfer device, image forming apparatus and secondary transfer method Masahiro Ashikawa, Hideyuki Takayama, Yoshihiro Asano, Minoru Takahashi 2013-01-29
8326549 Control device, image forming device, wear detecting method, program, and storage device Yuusuke Ishizaki 2012-12-04
8219003 Drive control device of a rotation member, method for drive control of a rotation member, and image forming apparatus including the drive control device Koichi Kudo, Jun Yamane 2012-07-10
8059998 Image forming device adapted to control speed difference between first rotary member and second rotary member 2011-11-15
8000622 Moving body controlling device, intermediate transferring device, and image forming apparatus having the same Yuusuke Ishizaki, Koji Kiryu 2011-08-16
7911168 Method and device for controlling motor, and image forming apparatus 2011-03-22
7177552 Image forming apparatus, imaging process unit, and method for recording information concerning imaging process unit 2007-02-13
7167656 Information delivering system, information delivering method, and computer product 2007-01-23
7016617 Information delivering system, information delivering method, and computer product 2006-03-21
4642653 Multi-tone recording method for ink jet printer Tadashi Ito, Koichiro Jinnai, Toshiharu Murai, Takao Fukazawa, Kazumi Ishima 1987-02-10
4622561 Image forming method for dot matrix printer 1986-11-11
4604631 Control system and method for charge control ink jet printer Koichiro Jinnai, Takao Fukazawa, Tadashi Ito, Toshiharu Murai, Kazumi Ishima 1986-08-05