Growing community of inventors

Yokohama, Japan

Masahiko Yamaguchi

Average Co-Inventor Count = 2.75

ph-index = 4

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 = 82

Masahiko YamaguchiEiji Takahashi (69 patents)Masahiko YamaguchiMichihiro Gonda (5 patents)Masahiko YamaguchiKatsumasa Kikkawa (4 patents)Masahiko YamaguchiYoshihide Miyazawa (3 patents)Masahiko YamaguchiMinoru Ozutsumi (3 patents)Masahiko YamaguchiMikiko Kanasugi (3 patents)Masahiko YamaguchiMitsutoshi Anzai (2 patents)Masahiko YamaguchiKazuo Kaneko (2 patents)Masahiko YamaguchiToshiyuki Abe (2 patents)Masahiko YamaguchiKazuyuki Wakasugi (2 patents)Masahiko YamaguchiKatsuichi Motohashi (2 patents)Masahiko YamaguchiToshio Obara (2 patents)Masahiko YamaguchiKeiso Saeki (1 patent)Masahiko YamaguchiAkira Shirai (1 patent)Masahiko YamaguchiSusumu Suzuka (1 patent)Masahiko YamaguchiYoshiaki Hirakata (1 patent)Masahiko YamaguchiMasami Ito (1 patent)Masahiko YamaguchiEiji Takahashi (1 patent)Masahiko YamaguchiKazuyuki Ochiai (1 patent)Masahiko YamaguchiYoshihiko Baba (1 patent)Masahiko YamaguchiMasao Okada (1 patent)Masahiko YamaguchiAkio Watanabe (1 patent)Masahiko YamaguchiYutaka Satoh (1 patent)Masahiko YamaguchiTakuma Sawaya (1 patent)Masahiko YamaguchiHiroyuki Yoshida (1 patent)Masahiko YamaguchiWakasugi Kazuyuki (1 patent)Masahiko YamaguchiKensaku Okano (1 patent)Masahiko YamaguchiShiro Irisa (1 patent)Masahiko YamaguchiMasahiko Yamaguchi (17 patents)Eiji TakahashiEiji Takahashi (69 patents)Michihiro GondaMichihiro Gonda (16 patents)Katsumasa KikkawaKatsumasa Kikkawa (7 patents)Yoshihide MiyazawaYoshihide Miyazawa (14 patents)Minoru OzutsumiMinoru Ozutsumi (12 patents)Mikiko KanasugiMikiko Kanasugi (8 patents)Mitsutoshi AnzaiMitsutoshi Anzai (43 patents)Kazuo KanekoKazuo Kaneko (21 patents)Toshiyuki AbeToshiyuki Abe (15 patents)Kazuyuki WakasugiKazuyuki Wakasugi (12 patents)Katsuichi MotohashiKatsuichi Motohashi (7 patents)Toshio ObaraToshio Obara (5 patents)Keiso SaekiKeiso Saeki (48 patents)Akira ShiraiAkira Shirai (37 patents)Susumu SuzukaSusumu Suzuka (32 patents)Yoshiaki HirakataYoshiaki Hirakata (27 patents)Masami ItoMasami Ito (22 patents)Eiji TakahashiEiji Takahashi (15 patents)Kazuyuki OchiaiKazuyuki Ochiai (14 patents)Yoshihiko BabaYoshihiko Baba (9 patents)Masao OkadaMasao Okada (8 patents)Akio WatanabeAkio Watanabe (7 patents)Yutaka SatohYutaka Satoh (4 patents)Takuma SawayaTakuma Sawaya (4 patents)Hiroyuki YoshidaHiroyuki Yoshida (3 patents)Wakasugi KazuyukiWakasugi Kazuyuki (1 patent)Kensaku OkanoKensaku Okano (1 patent)Shiro IrisaShiro Irisa (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Hodogaya Chemical Co., Ltd. (12 from 328 patents)

2. Hirose Electric Company, Ltd. (2 from 773 patents)

3. Canon Kabushiki Kaisha (1 from 90,809 patents)

4. Toyota Jidosha Kabushiki Kaisha (1 from 36,771 patents)

5. Honda Motor Co., Ltd. (1 from 21,963 patents)

6. Fuji Photo Film Company, Limited (1 from 16,458 patents)

7. Uniden Corporation (1 from 144 patents)


17 patents:

1. 10483662 - Connector with L-shaped coaxial terminals and method of manufacture thereof

2. 9425564 - Connector

3. 9131609 - Waterproof structure for electronic device

4. 8118881 - Hair dye and hair dye composition

5. 6959088 - Data processing apparatus and method for encryption or decryption of communication data

6. 5240898 - Heat sensitive recording material

7. 5041560 - Fluoran compound

8. 4987262 - Cycloalkene compounds useful in recording materials

9. 4912259 - Pentadiene amino compound

10. 4698632 - Radar detector

11. 4612558 - Fluoran compounds

12. 4594601 - Fluoran compounds

13. 4510513 - Heat sensitive record sheet

14. 4364999 - Heat sensitive record sheet

15. 4074050 - Diphenyl-1,3-benzoxazine-2-ones

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1/7/2026
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