TA

Tamotsu Aruga

Ricoh Company: 76 patents #69 of 9,818Top 1%
HC Hodogaya Chemical Co.: 7 patents #44 of 359Top 15%
RC Richo Company: 1 patents #3 of 57Top 6%
Overall (All Time): #23,907 of 4,157,543Top 1%
78
Patents All Time

Issued Patents All Time

Showing 1–25 of 78 patents

Patent #TitleCo-InventorsDate
10414932 Ink, ink container, and inkjet recording device Kazuhiko Umemura, Hiroyuki Fushimi, Yoshihiro Moriya 2019-09-17
10011684 Arylamine polymer, method for producing the same, ink composition, film, electronic device, organic thin-film transistor, and display device Toshiya Sagisaka, Takashi Okada, Masaomi Sasaki, Masafumi Torii, Takuji Kato +3 more 2018-07-03
8998400 Copolymer, aqueous ink, and ink cartridge Shigeyuki Harada, Hiroshi Gotou, Hidetoshi Fujii 2015-04-07
8815140 Method of producing film by inkjet process, and film Shinya Seno, Masayuki Koyano, Eiji Noda, Noriyasu Takeuchi, Tsutomu Maekawa +4 more 2014-08-26
8807731 Inkjet image forming apparatus and inkjet image forming method Noriyasu Takeuchi, Eiji Noda, Shin-ya Seno 2014-08-19
8740374 Ink jet recording method, ink jet recording apparatus, and ink jet recorded matter Shin-ya Seno, Masayuki Koyano, Eiji Noda, Norlyasu Takeuchi, Okitoshi Kimura +4 more 2014-06-03
8727522 Ultraviolet crosslinking ink and inkjet recording method Tsutomu Maekawa, Okitoshi Kimura, Eiji Noda, Shinya Seno, Noriyasu Takeuchi +4 more 2014-05-20
8708475 Ultraviolet crosslinking inkjet ink, ink cartridge containing same, and image forming method and apparatus using same Tomoko Hasegawa, Okitoshi Kimura, Eiji Noda, Shinya Seno, Noriyasu Takeuchi +4 more 2014-04-29
8632174 Ink jet recording method Soh Noguchi, Okitoshi Kimura, Tsutomu Maekawa, Takao Hiraoka, Tomoko Hasegawa +4 more 2014-01-21
8556405 Ink for recording, and ink cartridge, ink recorded matter, inkjet recording apparatus and inkjet recording method using the same Hisashi Habashi, Michihiko Namba, Mariko Kojima, Akihiko Gotoh, Kiyofumi Nagai 2013-10-15
8440713 [1]benzothieno[3,2-B][1]benzothiophene compound and method for producing the same, and organic electronic device using the same Daisuke Goto, Masafumi Torii, Tamotsu Horiuchi, Hiroshi Ikuno, Toshiya Sagisaka +6 more 2013-05-14
8435339 Ink set, ink cartridge, inkjet recording method, and inkjet recording apparatus Masayuki Koyano, Hiroshi Goto, Kiyofumi Nagai, Toshiroh Tokuno 2013-05-07
8328343 Recording ink as well as ink media set, ink cartridge, ink recorded matter, inkjet recording apparatus and inkjet recording method Masayuki Koyano, Akihiko Matsuyama, Hisashi Habashi, Hiroshi Goto, Tohru Ohshima +2 more 2012-12-11
8193304 Benzobisthiazole compound, benzobisthiazole polymer, organic film including the compound or polymer and transistor including the organic film Satoshi Yamamoto, Masafumi Torii, Tamotsu Horiuchi, Takuji Kato, Toshiya Sagisaka +6 more 2012-06-05
8173227 Recording ink, ink media set, ink cartridge, ink recorded matter, inkjet recording apparatus, and inkjet recording method Naoya Morohoshi, Michihiko Namba, Akihiko Gotoh, Kiyofumi Nagai 2012-05-08
8044114 Ink for recording, and ink cartridge, ink recorded matter, inkjet recording apparatus and inkjet recording method using the same Hisashi Habashi, Michihiko Namba, Mariko Kojima, Akihiko Gotoh, Kiyofumi Nagai 2011-10-25
7950793 Recording ink, ink cartridge, ink record, inkjet recording apparatus and inkjet recording process Kiyofumi Nagai 2011-05-31
7919544 Ink-media set, ink composition, ink cartridge, inkjet recording method, inkjet recording apparatus, and ink recorded matter Akihiko Matsuyama, Naoya Morohoshi, Tohru Ohshima, Hiroshi Goto 2011-04-05
7816674 Organic thin-film transistor Takuji Kato, Daisuke Goto, Masafumi Torii, Shinji Matsumoto 2010-10-19
7621608 Image forming apparatus having improved capability for maintaining ink delivery Masanori Kusunoki, Noriyasu Takeuchi, Kunihiro Yamanaka, Hiroshi Adachi 2009-11-24
6699631 Image forming apparatus, image forming method, process cartridge, photoconductor and method of preparing photoconductor Yuka Miyamoto, Toshiyuki Kabata 2004-03-02
6558863 Electrophotographic photoreceptor, electrophotographic image forming method and apparatus using the photoreceptor Takashi Rokutanzono, Tatsuya Niimi, Yoshiaki Kawasaki 2003-05-06
6355390 Electrophotographic photoconductor, production process thereof, electrophotographic image forming method and apparatus, and process cartridge Hirofumi Yamanami 2002-03-12
6316577 Electrophotographic photoconductor and aromatic polycarbonate resin for use therein Tomoyuki Shimada, Masaomi Sasaki, Masafumi Ohta, Akihiro Imai, Mitsutoshi Anzai +2 more 2001-11-13
6027846 Electrophotographic photoconductor and aromatic polycarbonate resin for use therein Tomoyuki Shimada, Masaomi Sasaki, Masafumi Ohta, Akihiro Imai, Mitsutoshi Anzai +2 more 2000-02-22