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USPTO Patent Rankings Data through Dec 31, 2025
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Naka, JP All Time

1,010 patents  ·  152 inventors

Ranked #3,009 of 112,640 cities Top 3%

Naka, JP ranks #3,009 worldwide for total patents filed all time, with 1,010 patents from 152 inventors. Leading employers of inventors based in Naka, JP include Hitachi, Canon, Mitsubishi Materials.

Showing 1–50 of 152 inventors

Rank Inventor Primary Company Patents
1 Hiroshi Kitaguchi Hitachi 109
2 Shunichi Uzawa Canon 63
3 Toshikazu Narahara Hitachi 34
#4 Akira Osada Mitsubishi Materials 30
#5 Toshiaki Fujita Mitsubishi Materials 29
#6 Hitoshi Inaba Mitsubishi Materials 25
#7 Akira Yoshinari Hitachi 22
#8 Jun Fujii Mitsubishi Materials 21
#9 Noriaki Nagatomo Mitsubishi Materials 20
#9 Katsuaki Fukatsu Hitachi 20
#11 Ayumu Hatanaka Hitachi Automotive Systems 19
#12 Shigeo Amagi Hitachi 18
#12 Akihiro Murakami Mitsubishi Materials 18
#14 Kenzo Nakamura Mitsubishi Materials 17
#14 Masahiro Yano Mitsubishi Materials 17
#16 Yoshie Tarutani Mitsubishi Materials 16
#16 Takuya Komatsu Aisin Aw Co. 16
#18 Misako Hirosue Semiconductor Energy Laboratory 15
#19 Sho TATSUOKA Mitsubishi Materials 14
#19 Hisao Sonobe Hitachi 14
#21 Kazutaka Fujiwara Mitsubishi Materials 13
#22 Gakuji Uozumi Mitsubishi Materials 12
#22 Yoshitaka Yaginuma Mitsubishi Nuclear Fuel Co. 12
#22 Akira Tojo Kabushiki Kaisha Toshiba 12
#25 Kuniharu Kato NTT 11
#25 Shintaro Iida Mitsubishi Materials 11
#25 Satoko Higano Mitsubishi Materials 11
#28 Masakuni Takahashi Mitsubishi Materials 10
#28 Motoi Ueda Nikon 10
#30 Yoshiyuki Koyama Unknown 9
#30 Kazuyoshi Tari Mitsubishi Materials 9
#30 Masanobu Chuta Nidec 9
#30 Michiyuki Amano NTT 9
#30 Yosuke Miyashita Mitsubishi Materials 9
#35 Yoshitaka Mayuzumi Mitsubishi Materials 8
#35 Yoshiaki Tsukuda Mitsubishi Electric 8
#35 Tsuyoshi Ogami Mitsubishi Materials 8
#35 Kazunori Igarashi Mitsubishi Materials 8
#35 Hideaki Takashima Mitsubishi Chemical 8
#35 Hidemitsu Takaoka Mitsubishi Materials 8
#41 Mami Watanabe Mitsubishi Materials 7
#41 Kuniyasu Iwazaki Nippon Densan Co. 7
#41 Mototaka Ishikawa Mitsubishi Materials 7
#41 Kensei Hosoya Hitachi Koki Co. 7
#41 Takehiro Yonezawa Mitsubishi Materials 7
#41 Hiroki Kuriyama Tama Biochemical Co. 7
#47 Seiichi Narushima Hitachi 6
#47 Hiroto Akaike Mitsubishi Materials 6
#47 Norio Owada Hitachi High-Technologies 6
#47 Atsuyoshi Yamauchi Mitsui Toatsu Chemicals, Incorporated 6

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