Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Mito, JP ranks #1,462 worldwide for total patents filed in 2016, with 86 patents from 43 inventors. Leading employers of inventors based in Mito, JP include Hitachi, Hitachi High-Technologies, Hitachi Automotive Systems.

Showing 1–43 of 43 inventors

Rank Inventor Primary Company Patents
1 Kazuhiko Tomita Hitachi 7
2 Kumiko Kamihara Hitachi High-Technologies 6
2 Naofumi Chiwata Hitachi 6
#4 Ryouhei Nakao Hitachi Automotive Systems 5
#5 Akira Hamamatsu Hitachi High-Technologies 3
#5 Masanori Miyoshi Hitachi 3
#5 Toshiyuki Horikoshi Hitachi Cable 3
#5 Yasuo Takahashi Mitsubishi Hitachi Power Systems 3
#5 Sayaka Sarwar Hitachi High-Technologies 3
#5 Hideaki KIDO Renesas Electronics 3
#5 Juhyun Yu Hitachi Cable 3
#12 Masahide Hayashi Hitachi Automotive Systems 2
#12 Muneo Maeshima Hitachi 2
#12 Ryutaro Kikuchi Hitachi 2
#12 Ryuji Kohno Hitachi 2
#12 Makoto Nagase Seiko Epson 2
#12 Takuro Tsunaki Hitachi Automotive Systems 2
#12 Masaki Kanai Shimadzu 2
#12 Hirotaka Ono NTT 2
#12 Naoyuki Kono Hitachi-Ge Nuclear Energy 2
#21 Yoshiyuki Shoji Hitachi High-Technologies 1
#21 Katsuyoshi Tatenuma Kaken Co. 1
#21 Yuriko Ida Hitachi Chemical Company 1
#21 Yuji Ichinose Hitachi 1
#21 Yoshinobu Narita Sumitomo Chemical 1
#21 Yukari Yamada Sony 1
#21 Kiyoko Kurosawa Kaken Co. 1
#21 Makoto Ezumi Hitachi 1
#21 So OGUCHI Hitachi High-Technologies 1
#21 Hidekazu Fujimura Hitachi 1
#21 Tsuneyuki Noguchi Kaken Co. 1
#21 Tomomi Ueda Kaken Co. 1
#21 Ichiro Miyoshi Mitsubishi Hitachi Power Systems 1
#21 Mirai Higuchi Hitachi 1
#21 Shinji Komatsuzaki Mitutoyo 1
#21 Masataka Nishi Japan Atomic Energy Research Institute 1
#21 Eisaku Fukuchi Hitachi 1
#21 Fujio Yoshikubo Hitachi 1
#21 Masaru Miyoshi Junkosha 1
#21 Hiroshi Tabata Honda Motor Co. 1
#21 Chie Sugiyama Hitachi High-Technologies 1
#21 Tadakazu Ohashi Mitsubishi Materials 1
#21 Masaaki Fukuhara Hitachi 1