KH

Katsuhiro Hayashi

Canon: 10 patents #6,241 of 19,416Top 35%
IB Institute Of Applied Biochemistry: 2 patents #4 of 13Top 35%
Ricoh Company: 1 patents #6,936 of 9,818Top 75%
Overall (All Time): #360,966 of 4,157,543Top 9%
13
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
12234363 Aqueous ink, ink cartridge and ink jet recording method Tsuyoshi Furuse, Masahito Miyabe 2025-02-25
11584864 Aqueous ink, ink cartridge, ink jet recording method and method for producing aqueous ink Toshiyuki Umesato, Tsuyoshi Kasai, Naofumi Shimomura 2023-02-21
11549027 Aqueous ink, ink cartridge, ink jet recording method and method for producing aqueous ink Toshiyuki Umesato, Naofumi Shimomura, Tsuyoshi Kasai 2023-01-10
10550086 Lenvatinib derivative, and composition for pharmaceutical research and tumor therapeutic agent using the same Satoru Sugiyama 2020-02-04
10131806 Aqueous ink, ink cartridge, and ink jet recording method Kousuke Yamasaki, Masaru Ebine, Tsuyoshi Kasai, Naotoshi Miyamachi, Otome Yamashita +6 more 2018-11-20
9365733 Ink jet ink and ink jet recording method Ikuo Nakazawa, Ryota Takeuchi, Hideyuki Saito, Shigemoto Abe, Taro Endo +2 more 2016-06-14
9260611 Synthesis method for self-dispersible pigment, self-dispersible pigment, ink jet ink, ink cartridge, and ink jet recording method Junichi Sakai, Kenji Nishiguchi 2016-02-16
8889763 Ink jet ink, ink jet recording method, and ink cartridge Kenji Nishiguchi 2014-11-18
8439495 Ink jet liquid composition, set, liquid cartridge, and ink jet recording method Kenji Nishiguchi, Sachie Furukawa 2013-05-14
8425027 Clear ink, ink jet recording method, ink set, ink cartridge, recording unit and ink jet recording apparatus Yuko Nishiwaki, Yoshio Nakajima, Yuhei Shimizu, Tetsu Iwata, Kenji Nishiguchi 2013-04-23
7977409 Ink jet ink, ink jet recording method, and ink cartridge Kenji Nishiguchi 2011-07-12
7541787 Transistor drive circuit, constant voltage circuit, and method thereof using a plurality of error amplifying circuits to effectively drive a power transistor Kohji Yoshii 2009-06-02
4656303 Novel resolution method of racemic mixture Masayasu Kurono, Takafumi Iida, Kunio Yagi 1987-04-07