Growing community of inventors

Toyoake, Japan

Masumi Nishikawa

Average Co-Inventor Count = 1.97

ph-index = 13

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 = 513

Masumi NishikawaMasanobu Ishikawa (14 patents)Masumi NishikawaShoji Okada (6 patents)Masumi NishikawaHakumi Ishii (5 patents)Masumi NishikawaHidekazu Kogita (5 patents)Masumi NishikawaHiroshi Watanabe (4 patents)Masumi NishikawaSumio Takizawa (4 patents)Masumi NishikawaShuhei Toyoda (3 patents)Masumi NishikawaHiroki Sato (3 patents)Masumi NishikawaKenichi Kazaoka (2 patents)Masumi NishikawaRyoichi Fukumoto (1 patent)Masumi NishikawaMasahiro Kojima (1 patent)Masumi NishikawaTetsushi Hiramitsu (1 patent)Masumi NishikawaKenji Hori (1 patent)Masumi NishikawaYuji Yokoya (1 patent)Masumi NishikawaAtsuo Hirano (1 patent)Masumi NishikawaHiroshi Nakashima (1 patent)Masumi NishikawaYoshimasa Asano (1 patent)Masumi NishikawaSatoshi Ono (1 patent)Masumi NishikawaYasuhisa Inaba (1 patent)Masumi NishikawaKenichi Kikuchi (1 patent)Masumi NishikawaTeiji Okuyama (1 patent)Masumi NishikawaHirotsugu Sugiura (1 patent)Masumi NishikawaKatsuaki Kadoike (1 patent)Masumi NishikawaChiaki Yamada (1 patent)Masumi NishikawaSatoshi Isobe (1 patent)Masumi NishikawaMamoru Marutani (1 patent)Masumi NishikawaHideyuki Nagai (1 patent)Masumi NishikawaMasumi Nishikawa (35 patents)Masanobu IshikawaMasanobu Ishikawa (28 patents)Shoji OkadaShoji Okada (20 patents)Hakumi IshiiHakumi Ishii (14 patents)Hidekazu KogitaHidekazu Kogita (13 patents)Hiroshi WatanabeHiroshi Watanabe (40 patents)Sumio TakizawaSumio Takizawa (6 patents)Shuhei ToyodaShuhei Toyoda (13 patents)Hiroki SatoHiroki Sato (12 patents)Kenichi KazaokaKenichi Kazaoka (30 patents)Ryoichi FukumotoRyoichi Fukumoto (96 patents)Masahiro KojimaMasahiro Kojima (36 patents)Tetsushi HiramitsuTetsushi Hiramitsu (25 patents)Kenji HoriKenji Hori (20 patents)Yuji YokoyaYuji Yokoya (20 patents)Atsuo HiranoAtsuo Hirano (18 patents)Hiroshi NakashimaHiroshi Nakashima (18 patents)Yoshimasa AsanoYoshimasa Asano (16 patents)Satoshi OnoSatoshi Ono (11 patents)Yasuhisa InabaYasuhisa Inaba (10 patents)Kenichi KikuchiKenichi Kikuchi (9 patents)Teiji OkuyamaTeiji Okuyama (7 patents)Hirotsugu SugiuraHirotsugu Sugiura (7 patents)Katsuaki KadoikeKatsuaki Kadoike (6 patents)Chiaki YamadaChiaki Yamada (5 patents)Satoshi IsobeSatoshi Isobe (3 patents)Mamoru MarutaniMamoru Marutani (1 patent)Hideyuki NagaiHideyuki Nagai (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Aisin Seiki Kabushiki Kaisha (35 from 5,207 patents)

2. Toyota Jidosha Kabushiki Kaisha (8 from 36,499 patents)

3. Toyoda Gosei Co., Ltd. (1 from 3,077 patents)


35 patents:

1. 8727054 - Movable grille shutter for vehicle

2. 7083217 - Opening and closing apparatus for a lid of a vehicle

3. 7028573 - Opening and closing device

4. 5724198 - Retractable rear under view mirror device for an automotive vehicle

5. 5712736 - Under view mirror apparatus for a vehicle

6. 5638209 - Mirror apparatus

7. 5537263 - Under view mirror apparatus for a vehicle

8. 5497273 - Retractabel rear under view mirror system for an automotive vehicle

9. 5337190 - Retractable rear under view mirror system for an automotive vehicle

10. 5024157 - Shock detecting device

11. 5022282 - Tilt steering apparatus

12. 4876910 - Tilting steering apparatus

13. 4819498 - Tilt steering apparatus for vehicles

14. 4785684 - Vehicle steering mechanism

15. 4753122 - Screw-nut type mechanism

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12/8/2025
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