YK

Yuji Kameyama

TC Toyo Ink Sc Holdings Co.: 11 patents #4 of 144Top 3%
TC Toyo Ink Co.: 10 patents #2 of 41Top 5%
TC Toyocolor Co.: 2 patents #14 of 71Top 20%
AC Artience Co.: 1 patents #10 of 29Top 35%
TC Toyo Ink Mfg. Co.: 1 patents #227 of 499Top 50%
Overall (All Time): #365,522 of 4,157,543Top 9%
13
Patents All Time

Issued Patents All Time

Showing 1–13 of 13 patents

Patent #TitleCo-InventorsDate
12384928 Water-based inkjet ink and method for producing inkjet printed material Mutsuko MASATOKI, Atsushi Yoda 2025-08-12
11753560 Ink set, recording method, and printed item Gosuke Kikutsuji 2023-09-12
10538723 Maintenance liquid for active energy ray-curable inkjet ink Yohei Konda, Kazuhiro Jonai 2020-01-21
10472532 Magenta ink for ink-jet recording Mayuko Okamoto 2019-11-12
10000649 Active energy ray-curable inkjet ink composition Mayuko Okamoto, Kazuhiro Jonai 2018-06-19
9884973 Active energy ray-curable inkjet ink and ink set Mayuko Okamoto, Daisuke Fujiwara, Kazuhiro Jonai 2018-02-06
9284466 Active energy ray-curable inkjet ink set Yohei Konda, Kazuhiro Jonai 2016-03-15
9157000 Active energy beam-curable inkjet ink composition Norio Suzuki, Kazuhiro Jonai, Mayuko Okamoto, Yohei Konda 2015-10-13
9109130 Active energy ray-curable inkjet magenta ink composition Yohei Konda, Mayuko Okamoto, Kazuhiro Jonai, Norio Suzuki 2015-08-18
9040150 Active energy ray-curable inkjet ink composition and printed material using same Mayuko Okamoto, Yohei Konda, Kazuhiro Jonai, Norio Suzuki 2015-05-26
8933141 Active energy ray-curable inkjet ink composition Norio Suzuki, Kazuhiro Jonai, Mayuko Okamoto, Yohei Konda 2015-01-13
8507573 Active energy ray curable inkjet ink composition Norio Suzuki, Yohei Konda, Kazuhiro Jonai 2013-08-13
8137793 Ink composition and hardened material using thereof Kazuhiro Jonai, Norio Suzuki 2012-03-20