MI

Masahiko Ishikawa

Ricoh Company: 12 patents #1,888 of 9,818Top 20%
MC Mitsubishi Gas Chemical Company: 4 patents #481 of 1,727Top 30%
Mitsubishi Electric: 3 patents #8,691 of 25,717Top 35%
UN Unicharm: 1 patents #390 of 624Top 65%
WG W.L. Gore & Associates Gmbh: 1 patents #668 of 1,175Top 60%
PA Panasonic: 1 patents #13,264 of 21,108Top 65%
Overall (All Time): #182,855 of 4,157,543Top 5%
23
Patents All Time

Issued Patents All Time

Showing 1–23 of 23 patents

Patent #TitleCo-InventorsDate
11499062 Ink, ink set, ink container, image forming method, and image forming apparatus Hiroshi Gotou, Yoshiaki Masuda, Masaki Kudo, Kazuhiko Umemura, Keita Katoh +3 more 2022-11-15
11181709 Manufacturing method of optical fiber ribbon and manufacturing apparatus thereof Fumiaki Sato, Shigeru Suemori, Hiroki Ishikawa, Fumikazu YOSHIZAWA 2021-11-23
10286666 Ink discharge device and ink discharge method Hiroshi Gotou, Takahiro Yoshida, Yukio Otome 2019-05-14
10266710 Ink, image forming method, and liquid discharging device Hiroshi Gotou 2019-04-23
10190007 Ink, ink container, image forming method, image forming apparatus, and image formed matter Hiroshi Gotou 2019-01-29
10151991 Toner, toner stored unit, and image forming apparatus Satoshi Kojima, Yoshihiro Moriya, Satoshi Takahashi, Tatsuru Moritani, Tatsuki Yamaguchi 2018-12-11
10113078 Ink discharge device and ink discharge method Keita Katoh, Hiroshi Gotou, Takahiro Yoshida, Akihiko Matsuyama, Yoshiki Yanagawa 2018-10-30
9971261 Toner Satoshi Takahashi, Yoshihiro Moriya, Ryota Inoue, Tatsuki Yamaguchi, Satoshi Kojima 2018-05-15
9785065 Toner, and method for manufacturing toner Ryota Inoue, Yoshihiro Moriya, Satoshi Takahashi, Tatsuki Yamaguchi, Satoshi Kojima 2017-10-10
9618862 Toner and developer Yoshihiro Moriya, Ryota Inoue, Satoshi Takahashi, Tatsuki Yamaguchi 2017-04-11
9618863 Toner, developer and method of manufacturing toner Satoshi Takahashi, Yoshihiro Moriya, Satoshi Kojima, Tatsuki Yamaguchi 2017-04-11
9482973 Toner, method of manufacturing the toner, developer, and process cartridge Ryota Inoue, Yoshihiro Moriya, Satoshi Takahashi, Tatsuki Yamaguchi 2016-11-01
9248608 Manufacturing method and manufacturing apparatus of an absorbent body Yoshikazu Ogasawara, Takanori Yano 2016-02-02
8906573 Reinforced solid polymer electrolyte composite membrane, membrane electrode assembly for solid polymer fuel cell, and solid polymer fuel cell Tomoyuki Takane 2014-12-09
8889570 Light-transmitting electromagnetic-shielding laminate and method for producing the same, light-transmitting radio wave absorber, and adhesive composition Takatoshi Matsumura, Noboru Ohtani, Yoshiyuki Masuda, Yoshiya Kimura, Kyoko Nishizaki +1 more 2014-11-18
8063391 Light-transmitting electromagnetic wave-shielding material Takatoshi Matsumura, Yoshitaka Masuda, Noboru Ohtani, Yoshiya Kimura, Yoshiyuki Masuda +1 more 2011-11-22
7865114 Image forming apparatus, image forming method and process cartridge Masami Tomita, Yoshiaki Kawasaki 2011-01-04
5812863 Apparatus for correcting misspelling and incorrect usage of word 1998-09-22
5457174 Method for preparing polycarbonates by transesterification in a steel reactor Katsushige Hayashi, Mitsuhiko Masumoto, Masayuki Nakajima, Takuya Hasaki, Atsushi Hirashima 1995-10-10
5394014 Semiconductor device improved in light shielding property and light shielding package Kohji Hayano, Shinichi Mori, Masayuki Yamashita, Osamu Ueda, Namiki Moriga 1995-02-28
5379263 Semiconductor memory device which can provide required data flexibly under simplified control and operating method therefor Toshiyuki Ogawa 1995-01-03
5321097 Heat-resistant resin composition Takao Kawaki, Akikazu Amagai, Toshiaki Yamada, Yasuhiro Hirai, Hajime Ban 1994-06-14
5317195 Semiconductor device improved in light shielding property and light shielding package Kohji Hayano, Shinichi Mori, Masayuki Yamashita, Osamu Ueda, Namiki Moriga 1994-05-31