Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Samukawa, JP ranks #1,431 worldwide for total patents filed in 2021, with 96 patents from 65 inventors. Leading employers of inventors based in Samukawa, JP include Marelli Cabin Comfort Japan, Kyocera Document Solutions, Medrx Co..

Showing 1–50 of 65 inventors

Rank Inventor Primary Company Patents
1 Ikuo Kataoka Marelli Cabin Comfort Japan 5
2 Satoshi Kawakami Kyocera Document Solutions 4
2 Hidetoshi Hamamoto Medrx Co. 4
2 Satoshi Wakatsuki Toshiba Memory 4
#5 Takuya Miyama Unicharm 3
#5 Osamu Ishikawa Mitsubishi Electric 3
#5 Katsunori Kobayashi Medrx Co. 3
#5 Koichi Yamaki Unicharm 3
#5 Shunsuke Takino Unicharm 3
#10 Kyohei Terao National University Corporation Kagawa University 2
#10 Toshifumi Ohtsubo Unicharm 2
#10 Kazuhiro Hara Toshiba Tec Kabushiki Kaisha 2
#10 Hirotomo Mukai Unicharm 2
#10 Yasuhiro Fukumori Tadano 2
#10 Manabu Sogabe Teikoku Seiyaku Co. 2
#10 Iwao Ishikawa Tadano 2
#10 Masayoshi Katayama Ishigaki Company Limited 2
#18 Hidenori Yoshimura National University Corporation Kagawa University 1
#18 Keiko Yamasaki Medrx Co. 1
#18 Takahito Nagai Unicharm 1
#18 Nozomu Nishi National University Corporation Kagawa University 1
#18 Naoto Okumura Mitsubishi Electric 1
#18 Kenta Kawahito Kyowa Chemical Industry Co. 1
#18 Naoki Suenaga Fujitsu Limited 1
#18 Taiki Shibata Teikoku Seiyaku Co. 1
#18 Yoshihiko Fujimoto 1
#18 Nanami Ikeuchi Tadano 1
#18 Norikazu Sakakibara Kagoshima University 1
#18 Iori Takeda Fujitsu Limited 1
#18 Akio Nagao Panasonic 1
#18 Hiroki Goda Unicharm 1
#18 Daisuke Miyake Unicharm 1
#18 Hajime Sembo Tadano 1
#18 Yukinori Misaki Ark Limited 1
#18 Maika Takahashi Unicharm 1
#18 Masakazu Morita Ishigaki Company Limited 1
#18 Ryosuke Tamauchi Ishigaki Company Limited 1
#18 Yasuaki Nishihara Ishigaki Company Limited 1
#18 Shosuke Fujii Kabushiki Kaisha Toshiba 1
#18 Nobuyuki Tsuyama Tadano 1
#18 Noriaki Yamaji Shikoku Chemicals 1
#18 Katsuhiro TAKAO Aoi Electronics Co. 1
#18 Takeshi Hanajiri Unicharm 1
#18 Yoshihide Ishikawa Unicharm 1
#18 Chiyo Takagi Unicharm 1
#18 Takumi Nakano Unicharm 1
#18 Takuya Sakoda Asahi Fiber Glass Co. 1
#18 Naotaka Mimura Unicharm 1
#18 Kuniyoshi Kawabata Unicharm 1
#18 Masahiko Tsujino Shikoku Chemicals 1