HS

Hiromi Sakaguchi

Ricoh Company: 22 patents #966 of 9,818Top 10%
Overall (All Time): #191,786 of 4,157,543Top 5%
22
Patents All Time

Issued Patents All Time

Showing 1–22 of 22 patents

Patent #TitleCo-InventorsDate
11964495 Ink set, printer, and printing method Itsuro Sasaki, Ayaka Tanaka, Naoto Shimura, Shunsuke Horie, Hiroshi Gotou +1 more 2024-04-23
11603478 Ink, method of manufacturing ink, printing method, and printing device Hiroshi Gotou, Ayaka Tanaka 2023-03-14
11267255 Image forming method, image forming apparatus, and method for manufacturing printed matter Shun Saito, Takashi Tamai, Sayuri Kojima, Yuya Hirokawa 2022-03-08
11130349 Ink, method for producing ink, method for printing, and printer Hiroshi Gotou, Itsuro Sasaki, Ayaka Tanaka 2021-09-28
10919294 Liquid discharging device and liquid discharging method Takuya Fujita, Yuta Nakamura, Naoto Shimura, Yoshiaki Masuda, Tetsuto Ueda +5 more 2021-02-16
10723142 Image forming method, image forming apparatus, and method for manufacturing printed matter Shun Saito, Takashi Tamai, Sayuri Kojima, Yuya Hirokawa 2020-07-28
10603929 Drying device and image forming apparatus Ryota Iwasaki, Yoshiki Yanagawa, Kaori Toyama, Satoshi Takahashi, Toshihiro Yoshinuma +4 more 2020-03-31
10457079 Ink, inkjet recording method, ink cartridge, and image recording device Kaori Toyama, Yuuki Yokohama, Hideaki Nishimura, Masayuki Fukuoka, Shuusuke Someno 2019-10-29
10301492 Method of using recorded matter, recorded matter, and method of manufacturing recorded matter Takashi Tamai, Shun Saito, Sayuri Kojima 2019-05-28
10195885 Ink, inkjet recording method, ink cartridge, and image recording device Kaori Toyama, Yuuki Yokohama, Hideaki Nishimura, Masayuki Fukuoka, Shuusuke Someno 2019-02-05
10131805 Ink, ink stored container, inkjet recording apparatus, and printed matter Keita Katoh, Hiroshi Gotou, Yuuki Yokohama, Yukiko Takamura 2018-11-20
10012944 Method for manufacturing cleaning blade, cleaning blade, image formation device, and process cartridge Kaori Toyama, Shinji Nohsho, Masanobu Gondoh, Shohei Gohda, Masahiro Ohmori +1 more 2018-07-03
9938421 Set of ink and print medium, inkjet printing method, inkjet printing apparatus, printed matter, ink, and ink stored container Yukiko Takamura, Hiroshi Gotou, Yuuki Yokohama, Keita Katoh 2018-04-10
9873809 Ink, image forming method, image forming apparatus, and recorded matter Hiroshi Gotou, Keita Katoh, Yuuki Yokohama, Yukiko Takamura 2018-01-23
9395676 Cleaning blade having an elastic body of segmented hardnesses, and image forming apparatus and process cartridge including the cleaning blade Shinji Nohsho, Masahiro Ohmori, Yohta Sakon, Masanobu Gondoh, Shohei Gohda +1 more 2016-07-19
9383713 Cleaning blade, image forming apparatus, and process cartridge Yohta Sakon, Masahiro Ohmori, Yuka Aoyama, Masanobu Gondoh, Shohei Gohda +2 more 2016-07-05
9342031 Cleaning blade, image forming apparatus and process cartridge Shinji Nohsho, Yohta Sakon, Masahiro Ohmori, Yuka Aoyama, Masanobu Gondoh +2 more 2016-05-17
9244424 Cleaning blade, image forming apparatus and process cartridge Shinji Nohsho, Yohta Sakon, Masahiro Ohmori, Yuka Aoyama, Masanobu Gondoh +2 more 2016-01-26
9244423 Cleaning blade, and image forming apparatus and process cartridge using the cleaning blade Masanobu Gondoh, Shohei Gohda, Kaori Toyama, Shinji Nohsho, Masahiro Ohmori +2 more 2016-01-26
9207624 Cleaning blade, method for preparing the cleaning blade, and image forming apparatus and process cartridge using the cleaning blade Kaori Toyama, Shinji Nohsho, Masanobu Gondoh, Shohei Gohda, Yohta Sakon +1 more 2015-12-08
8557489 Gallium phthalocyanine compound, gallium phthalocyanine composite pigment, method for preparing gallium phthalocyanine composite pigment, and electrophotographic photoconductor Masafumi Ohta, Yoshiki Yanagawa 2013-10-15
8530124 Hydroxygallium phthalocyanine composite pigment, electrophotographic photoconductor containing the same, and image forming device and process cartridge for image forming device using the same Masafumi Ohta, Yoshiki Yanagawa 2013-09-10