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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Chitose, JP ranks #9,206 worldwide for total patents filed all time, with 225 patents from 51 inventors. Leading employers of inventors based in Chitose, JP include Sony, Seiko Epson, Sumitomo Electric Industries.

Showing 1–50 of 51 inventors

Rank Inventor Primary Company Patents
1 Yuki Koga Sony 46
2 Takunori Iki Seiko Epson 20
3 Hiroyuki Oikawa Seiko Epson 19
#4 Masahito Yoshii Seiko Epson 14
#5 Yoshitake Tateno Seiko Epson 12
#6 Shotaro Izawa Seiko Epson 11
#7 Osamu Kanaya Sumitomo Electric Industries 10
#8 Shinichiro Ishitsuka Sumitomo Electric Industries 9
#9 Kiyoshi Funada Hitachi Kokusai Electric 7
#10 Takafumi Egami Seiko Epson 6
#11 Shigeru Takegishi Nihon Dempa Kogyo Co. 5
#11 Masato Momii Renesas Technology 5
#13 Kiyoshi Ohba 4
#13 Shigeharu Nakao Rohm Co. 4
#15 Kazutomo Ogura Renesas Technology 3
#15 Ryo Ohashi Dynax 3
#15 Naoki Handa Renesas Technology 3
#15 Hirotsugu Nakamura Renesas Electronics 3
#19 Shigemitsu Tahara Renesas Technology 2
#19 Yuki YASHIRO Seiko Epson 2
#19 Kazuhito Mukai Dynax 2
#19 Kenichi Takezaki Dynax 2
#19 Shigeki Tasaka Dynax 2
#19 Ximeng Jiang Dynax 2
#19 Yukihiro Tanemura Mitsumi Electric Co. 2
#19 Naoya Terasawa Mitsubishi Electric 2
#27 Yuuichiroh Kawamura Ricoh Company 1
#27 Kouji Oosato Isuzu Motors Limited 1
#27 Kazuo Hosaka Sumitomo Electric Industries 1
#27 Taizou Hashizume Sumitomo Electric Industries 1
#27 Syoichi Shii Daihen 1
#27 Shahjada Ahmed Pahlovy Dynax 1
#27 Naokatsu Moriyama Hitachi Ulsi Systems Co. 1
#27 Shintaro Kameya Dynax 1
#27 Syu Hayashi Minebea Mitsumi 1
#27 Yuuki Yamate Renesas Northern Japan Semiconductor 1
#27 Takeshi Iino Sumitomo Electric Industries 1
#27 Masanobu Ohashi Snow Brand Seed Co. 1
#27 Hisanao Kitabayashi Dynax 1
#27 Wataru Hino Dynax 1
#27 Hisaya Oda Shin-Etsu Chemical Co. 1
#27 Akihito Shimoi Mochida Pharmaceutical Co. 1
#27 Naofumi Satou Hitachi Ulsi Systems Co. 1
#27 Naohito Asari Renesas Northern Japan Semiconductor 1
#27 Katsuyuki Ide 1
#27 Naoto Inouchi Nihon Dempa Kogyo Co. 1
#27 Tadafumi Sato Renesas Technology 1
#27 Shigefumi Yamaji Seiko Epson 1
#27 Atsuhito Matsuo Seiko Epson 1
#27 Tsuneo Okushi Sumitomo Electric Industries 1