KH

Kohji Hatayama

Ricoh Company: 24 patents #864 of 9,818Top 9%
Overall (All Time): #174,900 of 4,157,543Top 5%
24
Patents All Time

Issued Patents All Time

Showing 1–24 of 24 patents

Patent #TitleCo-InventorsDate
8600288 Image forming apparatus Takamasa Shiraki, Kazushige Kawamura, Yoshihide Ohta, Takayuki Andoh, Masato Ogawa +3 more 2013-12-03
8382095 Sheet feeding unit, image reading device including same, and image forming apparatus including the image reading device with independent cover and restriction member Yohei Osanai, Takayuki Andoh 2013-02-26
8322710 Automatic document feeder with sheet detector Takayuki Andoh, Yohei Osanai, Satoshi Narai, Taku Kudoh 2012-12-04
8265524 Transfer device, image forming apparatus, and waste toner container Tomofumi Inoue, Takeshi Sakashita, Mitsutoshi Kichise, Yuuji Meguro, Takeru Muramatsu 2012-09-11
8244167 Image forming apparatus Takayuki Andoh, Takuji Takahashi, Takamasa Shiraki, Yoshihide Ohta 2012-08-14
8204431 Compact image forming apparatus with post-processing Takamasa Shiraki, Takayuki Andoh, Yoshihide Ohta, Masato Ogawa, Tetsuya Fujioka +3 more 2012-06-19
8194255 Image forming apparatus Takayuki Andoh, Takuji Takahashi, Takamasa Shiraki, Yoshihide Ohta, Kazushige Kawamura +3 more 2012-06-05
8154770 Image forming apparatus Takamasa Shiraki, Takayuki Andoh, Takuji Takahashi, Yoshihide Ohta, Takashi Yokota 2012-04-10
8103186 Image forming apparatus Takayuki Andoh, Takuji Takahashi, Takamasa Shiraki, Yoshihide Ohta 2012-01-24
8089666 Image forming apparatus Takayuki Andoh, Takuji Takahashi, Takamasa Shiraki, Shigeo Nanno, Yoshihide Ohta 2012-01-03
8045887 Image forming apparatus Takeshi Sakashita, Tomofumi Inoue, Yuuji Meguro, Takeru Muramatsu 2011-10-25
8032071 Image forming apparatus including a reading part supported by first and second supporters Takayuki Andoh, Takuji Takahashi, Takamasa Shiraki, Yoshihide Ohta, Takashi Yokota 2011-10-04
7982923 Image forming apparatus Takayuki Andoh, Takuji Takahashi, Takamasa Shiraki, Shigeo Nanno, Yoshihide Ohta 2011-07-19
7970297 Powder container and image forming apparatus Tomofumi Inoue, Takeshi Sakashita, Mitsutoshi Kichise, Yuuji Meguro, Takeru Muramatsu 2011-06-28
7970336 Powder housing unit and image forming apparatus with powder housing unit Takeshi Sakashita, Tomofumi Inoue, Takeru Muramatsu, Mitsutoshi Kichise, Yuuji Meguro 2011-06-28
7946578 Automatic original conveying device and image forming apparatus Taku Kudoh 2011-05-24
7937028 Image forming apparatuses having specialized toner structures and materials Masato Ogawa, Tetsuya Fujioka, Takuji Takahashi, Takamasa Shiraki, Yoshihide Ohta +1 more 2011-05-03
7904010 Belt unit, transfer belt unit, and image forming apparatus Yuuji Meguro, Tomofumi Inoue, Mitsutoshi Kichise, Takeru Muramatsu 2011-03-08
7873303 Upper frame opening and closing mechanism, and image forming apparatus using the same Yoshihide Ohta, Takuji Takahashi, Takamasa Shiraki, Shigeo Nanno, Takayuki Andoh 2011-01-18
7778568 Image forming apparatus having guide member for detachable unit Takeshi Sakashita, Tomofumi Inoue, Takeru Muramatsu, Yuuji Meguro 2010-08-17
7751762 Transfer device and image forming apparatus including the same Tomofumi Inoue, Takeshi Sakashita, Yuuji Meguro, Takeru Muramatsu 2010-07-06
7643781 Transfer device and image forming apparatus Takeshi Sakashita, Tomofumi Inoue 2010-01-05
7616923 Power guiding device and image forming apparatus having power guiding device Tomofumi Inoue, Takeshi Sakashita, Yuuji Meguro, Takeru Muramatsu 2009-11-10
7599633 Image forming apparatus dust container including dust conveyance members Tomofumi Inoue, Takafumi Miyazaki, Tomoya Adachi, Takeshi Sakashita, Yuuji Meguro +1 more 2009-10-06