KN

Kazukiyo Nagai

Ricoh Company: 103 patents #35 of 9,818Top 1%
HC Hodogaya Chemical Co.: 12 patents #21 of 359Top 6%
SC Shin-Etsu Chemical Co.: 3 patents #839 of 2,176Top 40%
NC Nissin Chemical Industry Co.: 2 patents #21 of 83Top 30%
GC Goo Chemical Co.: 1 patents #20 of 39Top 55%
Overall (All Time): #12,723 of 4,157,543Top 1%
107
Patents All Time

Issued Patents All Time

Showing 26–50 of 107 patents

Patent #TitleCo-InventorsDate
9309427 Ink composition, ink cartridge, inkjet recording device, and inkjet printed matter Akihiko Matsuyama, Mitsuru Naruse, Masayasu Nonogaki, Keita Katoh, Yuusuke Koizuka 2016-04-12
9234110 Ink for inkjet recording, and ink cartridge, inkjet recording method, inkjet recorder, ink-recorded matter and method of producing the ink-recorded matter using the ink Keita Katoh, Mitsuru Naruse, Akihiko Matsuyama, Masayasu Nonogaki, Minoru Hakiri +1 more 2016-01-12
9217091 Inkjet recording ink and ink cartridge using the ink, inkjet recording apparatus, inkjet recording method and ink recorded matter Keita Katoh, Mitsuru Naruse, Akihiko Matsuyama, Masayasu Nonogaki, Minoru Hakiri +4 more 2015-12-22
9217089 Ink for inkjet recording Yuusuke Koizuka, Mitsuru Naruse, Masayasu Nonogaki, Akihiko Matsuyama, Keita Katoh +2 more 2015-12-22
9201319 Image bearing member, manufacturing method of the same, image forming method, image forming apparatus, and process cartridge Yuuji Tanaka, Tetsuro Suzuki, Yuusuke Koizuka 2015-12-01
9139749 Ink composition, recording method, printed matter, ink cartridge, and inkjet recording device Akihiko Matsuyama, Mitsuru Naruse, Masayasu Nonogaki, Minoru Hakiri, Keita Katoh +1 more 2015-09-22
9028056 Ink for inkjet recording, ink container, inkjet recorder and recorded matter Mitsuru Naruse, Masayasu Nonogaki, Akihiko Matsuyama, Keita Katoh, Yuusuke Koizuka 2015-05-12
8974895 Inkjet ink, ink storage container, inkjet recording device, and recorded matter Mitsuru Naruse, Masayasu Nonogaki, Keita Katoh, Akihiko Matsuyama, Yuusuke Koizuka 2015-03-10
8960885 Ink for inkjet recording, and ink cartridge, inkjet recording method, inkjet recorder, ink-recorded matter and method of producing the ink-recorded matter using the ink Keita Katoh, Mitsuru Naruse, Akihiko Matsuyama, Masayasu Nonogaki, Minoru Hakiri +1 more 2015-02-24
8871412 Electrophotographic photoconductor, image forming method, image forming apparatus, and process cartridge Yuuji Tanaka, Norio Nagayama 2014-10-28
8835084 Electrophotographic photoreceptor, and image forming method, image forming apparatus and process cartridge using same Tetsuro Suzuki, Hongguo Li 2014-09-16
8771909 Electrophotographic photoconductor, image forming apparatus, and process cartridge Yuusuke Koizuka, Yuuji Tanaka, Tetsuro Suzuki 2014-07-08
8679712 Photoreceptor and image forming method, image forming apparatus, and process cartridge using the photoreceptor Yuuji Tanaka, Tetsuro Suzuki, Yuusuke Koizuka 2014-03-25
8669030 Electrophotographic photoreceptor, and image forming method and apparatus using the same Yukio Fujiwara, Tetsuro Suzuki, Hiroshi Tamura, Hiroshi Ikuno, Hidetoshi Kami 2014-03-11
8652713 Furan derivative and electrophotographic photoconductor Hongguo Li, Tetsuro Suzuki, Yuuji Tanaka 2014-02-18
8623577 Acrylic ester compound and manufacturing intermediate thereof, method for manufacturing acrylic ester compound, and latent electrostatic image bearing member, image forming method, image forming apparatus and process cartridge Tamotsu Horiuchi, Hongguo Li, Tetsuro Suzuki, Hiroshi Tamura 2014-01-07
8481234 Image bearing member Hongguo Li, Yoshiaki Kawasaki 2013-07-09
8343698 Photoreceptor, method of manufacturing same, image formation method, image forming apparatus, and process cartridge Yoshiaki Kawasaki, Yukio Fujiwara 2013-01-01
8192904 Electrophotographic photoconductor, and image forming apparatus and process cartridge using the same Hongguo Li, Tetsuro Suzuki, Harukazu Okuda 2012-06-05
8017807 Tetrahydroxy compound, method for preparing the tetrahydroxy compound, and photoreceptor using the tetrahydroxy compound Tamotsu Horiuchi 2011-09-13
7985520 Photoreceptor, image formation method, image forming apparatus and process cartridge Hongguo Li, Kyohji Okada, Tamotsu Horiuchi 2011-07-26
7851114 Electrostatic latent image bearing member, and image forming apparatus, process cartridge, and image forming method using the same Akihiro Sugino, Takaaki Ikegami, Takeshi Takada 2010-12-14
7838188 Electrophotographic photoconductor, image forming method, image forming apparatus, and process cartridge Nobuya Mori, Tomoyuki Shimada, Tetsuro Suzuki, Tetsuya Toshine 2010-11-23
7718333 Electrophotographic photoconductor and method of preparing same Chiaki Tanaka, Tetsuro Suzuki, Hiroshi Ikuno, Hongguo Li 2010-05-18
7691931 Organic-inorganic hybrid material and method of preparing the organic-inorganic hybrid material, and electrophotographic photoreceptor, process cartridge, image forming apparatus and image forming method using the organic-inorganic hybrid material Hongguo Li 2010-04-06