Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
Home › Cities › Ibaraki, JP

Ibaraki, JP All Time

41,888 patents  ·  6,779 inventors

Ranked #138 of 111,555 cities Top 1%

Showing 5,701–5,750 of 6,779 inventors

Rank Inventor Primary Company Patents
#4343 Nobumichi Doke Nitto Chemical Industry Co. 1
#4343 Yasushi Konomura Hitachi Construction Machinery Co. 1
#4343 Masayauki Takizawa Takeda Pharmaceutical Company Limited 1
#4343 Takanori Tomomoto Nitto Electric Industrial Co. 1
#4343 Takeaki Nakajima Daikin Kogyo Co, Ltd, 1
#4343 Sen Sugiyama Hitachi 1
#4343 Sigeyuki Kobori Hitachi 1
#4343 Teruo Hiramatu Sumitomo Metal Industries 1
#4343 Tomisabro Yamada Sumitomo Metal Industries 1
#4343 Tadao Kawarasaki Takeda Chemical Industries 1
#4343 Kanta Seki Pentel Kabushiki Kaisha 1
#4343 Hiroyuki Yanashima Sumitomo Chemical 1
#4343 Toshimitu Okuno Nitto Electric Industrial Co. 1
#4343 Yoichi Nishinakamura Otsuka Pharmaceutical Co. 1
#4343 Seiichi Kashiwazaki Hitachi 1
#4343 Akio Kobubu Ministry Of International Trade & Industry 1
#4343 Rikizo Ishikawa Hitachi 1
#4343 Yuuseke Ito Nitto Electric Industrial Co. 1
#4343 Humio Tazima Hitachi 1
#4343 Masakazu Sagoh Sumitomo Chemical 1
#4343 Alberto Baruj National Institute For Materials Science 1
#4343 MOGENG HE Fuji Oil Holdings 1
#4343 Shinjirou Uenishi Nitto Denko 1
#4343 Takao Fujimura Fujisawa Pharmaceutical Co. 1
#4343 Makoto Ooka Japan Nuclear Cycle Development Institute 1
#4343 Ryuichiroh Tamochi Hitachi 1
#4343 Hiroyuki Fukami Kobayashi Pharmaceutical Co. 1
#4343 Kenzo Hosoi Unknown 1
#4343 Tadaaki Kurokawa Shin-Etsu Chemical Co. 1
#4343 Kaori Shirouzu Nitto Denko 1
#4343 Tstsuaki Nakamikawa Hitachi 1
#4343 Masahiko Hattori Takeda Chemical Industries 1
#4343 Yasuhiro FUJISAWA Duke University 1
#4343 Masashi KINO Shin-Etsu Chemical Co. 1
#4343 Masahiro Odagiri Sumitomo Sitix 1
#4343 Fukusaburou Ishihara Mitsubishi Gas Chemical Company 1
#4343 Etsuroh Nakao Japan Vilene Company 1
#4343 Yasuteru SHIGETA Fujitsu Limited 1
#4343 Junzou Miyazaki Nitto Denko 1
#4343 Kimitaka Ohtake Hitachi Seiki Co. 1
#4343 Naoki Kurita Fuji Yakuhin Co. 1
#4343 Masakazu Tobe Hitachi Cable 1
#4343 Arihito Fujiwara Dainippon Ink And Chemicals 1
#4343 Lijiang Zeng Japan Science And Technology 1
#4343 Ryuhei Harada Fujitsu Limited 1
#4343 Ryuuichi Inoue Nitto Denko 1
#4343 Lisa Ishimaru Society For Techno-Innovation Of Agriculture, Forestry And Fisheries 1
#4343 Takeshi Matsunaga National Research Institute For Metals 1
#4343 Shidzuka Yamazawa Nippon Shokubai Co. 1
#4343 Toshimi Honda — 1

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