HS

Hiroki Shirado

Ricoh Company: 20 patents #1,076 of 9,818Top 15%
Overall (All Time): #220,063 of 4,157,543Top 6%
20
Patents All Time

Issued Patents All Time

Showing 1–20 of 20 patents

Patent #TitleCo-InventorsDate
11838467 Document placement detecting device, image reading device, image forming apparatus, method, and non-transitory recording medium Kohsuke Nambara 2023-12-05
11277541 Signal correction device, image reading device, image processing apparatus, signal correction method, and computer program product Tatsuya Ozaki 2022-03-15
11115561 Inclination detecting device, reading device, image processing apparatus, and method of detecting inclination Hajime Tsukahara, Ayumu HASHIMOTO, Yuuki Nakada, Tomohiko Ono, Tatsuya Ozaki +4 more 2021-09-07
11102364 Inclination detecting device, reading device, image processing apparatus, and method of detecting inclination Yuuki Nakada, Hajime Tsukahara, Ayumu HASHIMOTO, Tomohiko Ono, Tatsuya Ozaki +4 more 2021-08-24
11102365 Edge detecting device, tilt correction device, reading device, image processing apparatus, and edge detection method Tomohiko Ono, Hajime Tsukahara, Ayumu HASHIMOTO, Yuuki Nakada, Tatsuya Ozaki +4 more 2021-08-24
11102375 Sheet reading apparatus for detecting the shadow of a conveyed sheet to determine an inclination Hiroshi Kubo, Kimiharu Yanagisawa, Hajime Tsukahara, Yoshiaki Nagao, Masahiro Itoh +4 more 2021-08-24
11095788 Document size detection device, image reading device, image forming apparatus, document size detecting method, and recording medium Tadaaki OYAMA, Masamoto Nakazawa, Tomohiro Sasa, Tatsuya Ozaki, Kohsuke Nambara 2021-08-17
11089177 Reading device, image forming apparatus, and image reading method Tatsuya Ozaki, Tadaaki OYAMA, Tomohiro Sasa, Kohsuke Nambara, Masamoto Nakazawa 2021-08-10
10951791 Image processing apparatus, method for processing image, and recording medium for noise removal and skew correction Ayumu HASHIMOTO, Hajime Tsukahara, Yuuki Nakada, Tomohiko Ono, Tatsuya Ozaki +4 more 2021-03-16
10855866 Document size detection device, image reading device, image forming apparatus, and document size detecting method Tomohiro Sasa, Tadaaki OYAMA, Tatsuya Ozaki, Kohsuke Nambara 2020-12-01
10542184 Photoelectric conversion device, defective pixel determining method, image forming apparatus, and recording medium Takuhei Yokoyama, Masamoto Nakazawa 2020-01-21
10536655 Photoelectric conversion device, image forming apparatus, photoelectric conversion method, and non-transitory recording medium Masamoto Nakazawa, Masayuki Yabuuchi 2020-01-14
10475844 Photoelectric conversion device, photoelectric conversion method, and image forming apparatus Keita Inoue, Masamoto Nakazawa 2019-11-12
10182177 Signal processing device, image scanning device, image forming apparatus, and method of controlling the same Tomohiro Sasa, Masamoto Nakazawa, Hideki Hashimoto 2019-01-15
10091383 Image reading apparatus, image forming apparatus, image reading method, and recording medium Naoki Goh, Masaki Nagase, Naoki Asaba, Shiho Shimosaka, Satoshi Hatanaka +7 more 2018-10-02
9973659 Imaging element, image reading device, image forming apparatus, and imaging method Yoshio Konno, Masamoto Nakazawa 2018-05-15
9930195 Image reading device, image processing apparatus, and image reading method Masaki Nagase, Naoki Asaba, Hideki Hashimoto 2018-03-27
9628654 Processing device, image reading device, image forming apparatus, and processing method Yoshio Konno, Masamoto Nakazawa 2017-04-18
9094630 Image processing apparatus 2015-07-28
8503047 Image reading device and image forming apparatus, and method of controlling image reading device 2013-08-06