Growing community of inventors

Tokyo, Japan

Masafumi Ito

Average Co-Inventor Count = 3.21

ph-index = 21

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 1,949

Masafumi ItoShigeru Hasegawa (98 patents)Masafumi ItoMinoru Sube (89 patents)Masafumi ItoHiroyuki Watanabe (70 patents)Masafumi ItoHaruki Takita (55 patents)Masafumi ItoKatsuhiro Takashima (52 patents)Masafumi ItoYukio Iikura (44 patents)Masafumi ItoKeiji Tsunoda (25 patents)Masafumi ItoYasunobu Shimizu (16 patents)Masafumi ItoKoji Suzuki (13 patents)Masafumi ItoHiroyuki Watanabe (7 patents)Masafumi ItoYuji Sato (5 patents)Masafumi ItoTooru Katayama (4 patents)Masafumi ItoSigeru Hasegawa (3 patents)Masafumi ItoToshiyuki Honda (3 patents)Masafumi ItoKatsuhiko Takahashi (2 patents)Masafumi ItoMasanori Endo (2 patents)Masafumi ItoYoshinori Fuse (2 patents)Masafumi ItoManami Fujino (2 patents)Masafumi ItoTakayuki Imai (1 patent)Masafumi ItoYusuke Nakai (1 patent)Masafumi ItoHirofumi Oba (1 patent)Masafumi ItoAtsushi Okada (1 patent)Masafumi ItoYoshiro Chikaki (1 patent)Masafumi ItoAkinobu Ono (1 patent)Masafumi ItoKiwako Ohmori (1 patent)Masafumi ItoHitoshi Yoshida (1 patent)Masafumi ItoHideki Tanaka (1 patent)Masafumi ItoKoyuru Horiike (1 patent)Masafumi ItoHiroyuki Terunuma (1 patent)Masafumi ItoAkihisa Koga (1 patent)Masafumi ItoKoji Nagamizu (1 patent)Masafumi ItoFumitaka Kobayashi (2 patents)Masafumi ItoKatsuhiro Takashyma (1 patent)Masafumi ItoKouji Okamoto (1 patent)Masafumi ItoAyumi Kobayashi (1 patent)Masafumi ItoTsugio Kirino (1 patent)Masafumi ItoKoji Okamoto (1 patent)Masafumi ItoHikaru Yasuhara (1 patent)Masafumi ItoYasuhisa Nakao (1 patent)Masafumi ItoNoboru Toshima (1 patent)Masafumi ItoJunichi Kato (1 patent)Masafumi ItoAkio Kiyohara (1 patent)Masafumi ItoAtsushi c/o Research & Development Center Of Gunze Limited Okada (0 patent)Masafumi ItoAkio c/o Research & Development Center Of Gunze Limited Kiyohara (0 patent)Masafumi ItoYasuhisa c/o Nakanuma Art Screen Co Ltd Nakao (0 patent)Masafumi ItoHideki c/o Research & Development Center Of Gunze Limited Tanaka (0 patent)Masafumi ItoNoboru c/o Nakanuma Art Screen Co Ltd Toshima (0 patent)Masafumi ItoJunichi c/o Nakanuma Art Screen Co Ltd Kato (0 patent)Masafumi ItoKoji Okamoto (0 patent)Masafumi ItoMasafumi Ito (198 patents)Shigeru HasegawaShigeru Hasegawa (111 patents)Minoru SubeMinoru Sube (92 patents)Hiroyuki WatanabeHiroyuki Watanabe (70 patents)Haruki TakitaHaruki Takita (76 patents)Katsuhiro TakashimaKatsuhiro Takashima (53 patents)Yukio IikuraYukio Iikura (50 patents)Keiji TsunodaKeiji Tsunoda (25 patents)Yasunobu ShimizuYasunobu Shimizu (73 patents)Koji SuzukiKoji Suzuki (13 patents)Hiroyuki WatanabeHiroyuki Watanabe (66 patents)Yuji SatoYuji Sato (5 patents)Tooru KatayamaTooru Katayama (5 patents)Sigeru HasegawaSigeru Hasegawa (7 patents)Toshiyuki HondaToshiyuki Honda (3 patents)Katsuhiko TakahashiKatsuhiko Takahashi (76 patents)Masanori EndoMasanori Endo (7 patents)Yoshinori FuseYoshinori Fuse (2 patents)Manami FujinoManami Fujino (2 patents)Takayuki ImaiTakayuki Imai (30 patents)Yusuke NakaiYusuke Nakai (14 patents)Hirofumi ObaHirofumi Oba (13 patents)Atsushi OkadaAtsushi Okada (5 patents)Yoshiro ChikakiYoshiro Chikaki (4 patents)Akinobu OnoAkinobu Ono (4 patents)Kiwako OhmoriKiwako Ohmori (3 patents)Hitoshi YoshidaHitoshi Yoshida (3 patents)Hideki TanakaHideki Tanaka (2 patents)Koyuru HoriikeKoyuru Horiike (2 patents)Hiroyuki TerunumaHiroyuki Terunuma (2 patents)Akihisa KogaAkihisa Koga (2 patents)Koji NagamizuKoji Nagamizu (2 patents)Fumitaka KobayashiFumitaka Kobayashi (2 patents)Katsuhiro TakashymaKatsuhiro Takashyma (1 patent)Kouji OkamotoKouji Okamoto (1 patent)Ayumi KobayashiAyumi Kobayashi (1 patent)Tsugio KirinoTsugio Kirino (1 patent)Koji OkamotoKoji Okamoto (1 patent)Hikaru YasuharaHikaru Yasuhara (1 patent)Yasuhisa NakaoYasuhisa Nakao (1 patent)Noboru ToshimaNoboru Toshima (1 patent)Junichi KatoJunichi Kato (1 patent)Akio KiyoharaAkio Kiyohara (1 patent)Atsushi c/o Research & Development Center Of Gunze Limited OkadaAtsushi c/o Research & Development Center Of Gunze Limited Okada (0 patent)Akio c/o Research & Development Center Of Gunze Limited KiyoharaAkio c/o Research & Development Center Of Gunze Limited Kiyohara (0 patent)Yasuhisa c/o Nakanuma Art Screen Co Ltd NakaoYasuhisa c/o Nakanuma Art Screen Co Ltd Nakao (0 patent)Hideki c/o Research & Development Center Of Gunze Limited TanakaHideki c/o Research & Development Center Of Gunze Limited Tanaka (0 patent)Noboru c/o Nakanuma Art Screen Co Ltd ToshimaNoboru c/o Nakanuma Art Screen Co Ltd Toshima (0 patent)Junichi c/o Nakanuma Art Screen Co Ltd KatoJunichi c/o Nakanuma Art Screen Co Ltd Kato (0 patent)Koji OkamotoKoji Okamoto (0 patent)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Teac Corporation (187 from 1,030 patents)

2. Bridgestone Corporation (5 from 5,115 patents)

3. Fujikura Kasei Co., Ltd. (3 from 52 patents)

4. Fujikura Limited (2 from 1,800 patents)

5. Mitsubishi Materials Corporation (1 from 1,530 patents)

6. Gunze Limited (1 from 156 patents)

7. Npc Corporation (1 from 17 patents)

8. Teac Corportion (1 from 2 patents)


198 patents:

1. 10850567 - Tire

2. 10259269 - Pneumatic tire for motorcycle

3. D777085 - Motorcycle tire

4. D742304 - Motorcycle tire

5. D681544 - Motorcycle tire

6. 8168252 - Electromagnetic wave shielding material and process for producing the same

7. 8141501 - Method and facility for disposing wet sludge

8. 7771627 - Conductive composition

9. 6942825 - Silver compound paste

10. D459336 - Combined radio receiver and digital audio disc player

11. D458242 - Digital audio disc player

12. D451083 - Combined amplifier and tuner

13. D450670 - Digital video disc player

14. D448354 - Digital video disc player

15. D447469 - Digital audio disc player

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11/21/2025
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