YW

Yu Wakabayashi

Ricoh Company: 11 patents #2,054 of 9,818Top 25%
Overall (All Time): #448,217 of 4,157,543Top 15%
11
Patents All Time

Issued Patents All Time

Showing 1–11 of 11 patents

Patent #TitleCo-InventorsDate
11767185 Sheet conveying device and image forming apparatus incorporating the sheet conveying device Yasuhide Fukushima, Yuuki Shiga, Kazuya Yamamoto, Ryohhei OHYA 2023-09-26
11708234 Sheet conveying device and image forming apparatus incorporating the sheet conveying device Kazuya Yamamoto, Yasuhide Fukushima, Yuuki Shiga, Ryohhei OHYA 2023-07-25
10144599 Sheet feeding device and image forming apparatus incorporating the sheet feeding device Kaoru Shoji, Masashi Sato, Shohei Shinkawa, Tetsutaro Oishi, Rie Ohtsuka 2018-12-04
10114323 Sheet size detector and image processing apparatus Tetsuro Hirota, Shintaroh Yamada, Shun Kobayashi 2018-10-30
9902578 Sheet containing device, sheet feeder incorporating the sheet containing device, and image forming apparatus incorporating the sheet containing device Ryuta Kaneda, Shohei Shinkawa 2018-02-27
8511668 Sheet feeding device and image forming apparatus incorporating same Yoshikuni Ishikawa, Toshiaki Takahashi, Manabu Nonaka 2013-08-20
8474811 Sheet feeding device and image forming apparatus incorporating same Toshiaki Takahashi, Yoshikuni Ishikawa, Manabu Nonaka 2013-07-02
8439347 Sheet conveying device and image forming apparatus Yoshikuni Ishikawa, Manabu Nonaka, Aki Ikeda 2013-05-14
8428480 Fixing device, image forming apparatus incorporating same, and method of dimensioning fixing device Kohta Takenaka, Kazunori Bannai, Toshihiro Shimada, Hidehiko Fujiwara 2013-04-23
8177217 Sheet feeding device and image forming apparatus incorporating same Toshiaki Takahashi, Yoshikuni Ishikawa, Manabu Nonaka 2012-05-15
7907869 Charging brush unit, charging device, and image forming apparatus Kohta Takenaka, Kazunori Bannai, Hidehiko Fujiwara 2011-03-15