TO

Tadaaki OYAMA

Ricoh Company: 14 patents #1,578 of 9,818Top 20%
Overall (All Time): #340,810 of 4,157,543Top 9%
14
Patents All Time

Issued Patents All Time

Showing 1–14 of 14 patents

Patent #TitleCo-InventorsDate
11694455 Fraud confirmation assisting apparatus and fraud confirmation method including a light source irradiating an object in the invisible wavelength range and read by a reading sensor to output a plurality of pieces of fraud confirmation information Masamoto Nakazawa 2023-07-04
11695892 Reading device and method of detecting feature amount from visible or invisible image Shogo Nakamura, Ayumu HASHIMOTO, Masamoto Nakazawa 2023-07-04
11553108 Reading device, image forming apparatus, and method Kohsuke Nambara, Ayumu HASHIMOTO, Masamoto Nakazawa 2023-01-10
11457116 Image processing apparatus and image reading method Masamoto Nakazawa, Yuichiro Shukuya 2022-09-27
11457121 Reading device, image forming apparatus, and color mixture prevention method Takuhei Yokoyama, Masamoto Nakazawa, Ayumu HASHIMOTO 2022-09-27
11190666 Image processing device, image forming apparatus, image processing method, and non-transitory computer-readable storage medium Yutaka OHMIYA, Masamoto Nakazawa 2021-11-30
11170243 Image processing device, image forming apparatus, and image processing method Masamoto Nakazawa, Yutaka OHMIYA 2021-11-09
11095788 Document size detection device, image reading device, image forming apparatus, document size detecting method, and recording medium Masamoto Nakazawa, Hiroki Shirado, Tomohiro Sasa, Tatsuya Ozaki, Kohsuke Nambara 2021-08-17
11089177 Reading device, image forming apparatus, and image reading method Tatsuya Ozaki, Tomohiro Sasa, Hiroki Shirado, Kohsuke Nambara, Masamoto Nakazawa 2021-08-10
10855866 Document size detection device, image reading device, image forming apparatus, and document size detecting method Tomohiro Sasa, Hiroki Shirado, Tatsuya Ozaki, Kohsuke Nambara 2020-12-01
10834272 Reading device, image forming apparatus including same, and reading method Masamoto Nakazawa, Masahiro Itoh, Masato Tanaka 2020-11-10
9426318 Image reader unit and image forming apparatus including same Masatoshi Ishida 2016-08-23
8711444 Light-source control device, light-source control method, image reading device, and image forming apparatus 2014-04-29
8537431 Light source driving device, and image processing device, image reading device and image forming apparatus using the light source driving device 2013-09-17