Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Ageo, JP ranks #2,144 worldwide for total patents filed in 2021, with 61 patents from 39 inventors. Leading employers of inventors based in Ageo, JP include Fujitsu Limited, Sekisui Chemical Co., Showa Denko K.K..

Showing 1–39 of 39 inventors

Rank Inventor Primary Company Patents
1 Tsukasa Takahashi Fujitsu Limited 8
2 Daisuke Nakajima Sekisui Chemical Co. 5
3 Shigeru Yamaki Showa Denko K.K. 3
3 Masako Kashiwagi Kabushiki Kaisha Toshiba 3
3 Michihiro Horie IBM 3
#6 Takuya Yamamoto Mitsui Mining & Smelting Co. 2
#6 Teruaki Yagi Mitsui Mining & Smelting Co. 2
#6 Yoshinobu Nakada Mitsubishi Materials 2
#6 Takashi Chikumoto Mitsui Mining & Smelting Co. 2
#6 Jun Itoh Mitsui Mining & Smelting Co. 2
#11 Takahiro Kogawa Mitsui Mining & Smelting Co. 1
#11 Akihiro Modeki Mitsui Mining & Smelting Co. 1
#11 Tomohiro Ishino Ngk Spark Plug Co. 1
#11 Yuichi Senoo Mitsui Mining & Smelting Co. 1
#11 Shun Fukuzato Mitsui Mining & Smelting Co. 1
#11 Asuka Sasakura Mitsui Mining & Smelting Co. 1
#11 Masafumi Shirai National Institute For Materials Science 1
#11 Toyohiko Aoki Mitsui Mining & Smelting Co. 1
#11 Rintaro Ishii Hitachi 1
#11 Kei Anai Mitsui Mining & Smelting Co. 1
#11 Alan Hase Taiho Kogyo Co. 1
#11 Toshifumi Matsushima Mitsui Mining & Smelting Co. 1
#11 Naohiko Abe Mitsui Mining & Smelting Co. 1
#11 Takaaki Ikeda Koyo Seiko Co. 1
#11 Takeru Uehara Nikon 1
#11 Toshimi Nakamura Mitsui Mining & Smelting Co. 1
#11 Yoshiyuki Maeda Maruzen Company Limited 1
#11 Masaru Hyakutake Mitsui Mining & Smelting Co. 1
#11 Hiroaki Kurihara Mitsui Mining & Smelting Co. 1
#11 Haruka MAKINO Cataler 1
#11 Yuji Hoshi Hoya 1
#11 Hiroaki Ohsako Fukoku Co. 1
#11 Takashi Wakabayashi Mitsui Mining & Smelting Co. 1
#11 Takeshi Isonaka Dainippon Ink And Chemicals 1
#11 Masashi Nakajima Topcon 1
#11 Chieko Uemizu Intel 1
#11 Atsushi Kurosaki Mitsui Mining & Smelting Co. 1
#11 Hitoshi Kajino Mitsui Mining & Smelting Co. 1
#11 Toshihiro Hosoi Mitsui Mining & Smelting Co. 1