Growing community of inventors

Tokyo, Japan

Masahiko Yamada

Average Co-Inventor Count = 4.40

ph-index = 5

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 = 107

Masahiko YamadaMasato Ogawa (11 patents)Masahiko YamadaYuichiro Maeyama (11 patents)Masahiko YamadaKazuhiro Wakamatsu (8 patents)Masahiko YamadaToshihiro Yoshinuma (7 patents)Masahiko YamadaTakayuki Niihara (4 patents)Masahiko YamadaTadashi Moroshima (3 patents)Masahiko YamadaKazuo Ishiwari (3 patents)Masahiko YamadaHiroshi Ishii (2 patents)Masahiko YamadaMakoto Ono (2 patents)Masahiko YamadaHiroyuki Yamauchi (2 patents)Masahiko YamadaTakayuki Andoh (2 patents)Masahiko YamadaTaku Yamanaka (2 patents)Masahiko YamadaKeisuke Shimizu (2 patents)Masahiko YamadaTsuneji Kameda (2 patents)Masahiko YamadaKazushige Kawamura (2 patents)Masahiko YamadaSeiji Fujiwara (2 patents)Masahiko YamadaShinichi Chaen (2 patents)Masahiko YamadaTakamasa Shiraki (2 patents)Masahiko YamadaHiroyuki Nagashima (1 patent)Masahiko YamadaYasuo Takagi (1 patent)Masahiko YamadaKoichi Goto (1 patent)Masahiko YamadaKatsuya Yamashita (1 patent)Masahiko YamadaTaketo Kato (1 patent)Masahiko YamadaTadashi Kobayashi (1 patent)Masahiko YamadaKohta Takenaka (1 patent)Masahiko YamadaHirotoshi Yoshida (1 patent)Masahiko YamadaYasuhiko Sawada (1 patent)Masahiko YamadaYoshiyuki Shibuya (1 patent)Masahiko YamadaShoji Kawachi (1 patent)Masahiko YamadaKazuya Yamada (24 patents)Masahiko YamadaTakahiro Taira (1 patent)Masahiko YamadaKunihiko Inui (1 patent)Masahiko YamadaShigeru Morinaga (1 patent)Masahiko YamadaTokuya Ohjimi (1 patent)Masahiko YamadaHiroyuki Yamauchi (12 patents)Masahiko YamadaTatsuro Uchida (4 patents)Masahiko YamadaKazuhiko Watabe (3 patents)Masahiko YamadaKentaro Tsukuya (3 patents)Masahiko YamadaMasaru Mitsuda (3 patents)Masahiko YamadaYuko Kawajiri (2 patents)Masahiko YamadaHisao Watanabe (2 patents)Masahiko YamadaMasafumi Komai (2 patents)Masahiko YamadaKohei Yasuda (2 patents)Masahiko YamadaNobuki Uraoka (1 patent)Masahiko YamadaMasato Yoshino (1 patent)Masahiko YamadaShigeo Kasai (1 patent)Masahiko YamadaTomohisa Konishi (1 patent)Masahiko YamadaKentaroh Matsumoto (1 patent)Masahiko YamadaMasato Ogawa (4 patents)Masahiko YamadaYutaka Nakata (1 patent)Masahiko YamadaTakeshi Washio (1 patent)Masahiko YamadaOsamu Shirasaki (1 patent)Masahiko YamadaTakatoshi Asada (1 patent)Masahiko YamadaKoichi Nunokawa (2 patents)Masahiko YamadaTakao Nakagaki (1 patent)Masahiko YamadaSeiji Fujiwara (2 patents)Masahiko YamadaHisao Oomura (2 patents)Masahiko YamadaShinichi Makino (1 patent)Masahiko YamadaHidenori Harada (1 patent)Masahiko YamadaKunihiko Honji (1 patent)Masahiko YamadaRyoji Yoshimura (1 patent)Masahiko YamadaFuminobu Tamase (1 patent)Masahiko YamadaYoshiteru Ishii (1 patent)Masahiko YamadaToshio Shimura (1 patent)Masahiko YamadaRyoji Yoshimura (1 patent)Masahiko YamadaShigeo Kasai (1 patent)Masahiko YamadaMasahiko Yamada (29 patents)Masato OgawaMasato Ogawa (71 patents)Yuichiro MaeyamaYuichiro Maeyama (30 patents)Kazuhiro WakamatsuKazuhiro Wakamatsu (40 patents)Toshihiro YoshinumaToshihiro Yoshinuma (29 patents)Takayuki NiiharaTakayuki Niihara (19 patents)Tadashi MoroshimaTadashi Moroshima (20 patents)Kazuo IshiwariKazuo Ishiwari (13 patents)Hiroshi IshiiHiroshi Ishii (125 patents)Makoto OnoMakoto Ono (102 patents)Hiroyuki YamauchiHiroyuki Yamauchi (91 patents)Takayuki AndohTakayuki Andoh (55 patents)Taku YamanakaTaku Yamanaka (49 patents)Keisuke ShimizuKeisuke Shimizu (45 patents)Tsuneji KamedaTsuneji Kameda (25 patents)Kazushige KawamuraKazushige Kawamura (24 patents)Seiji FujiwaraSeiji Fujiwara (22 patents)Shinichi ChaenShinichi Chaen (18 patents)Takamasa ShirakiTakamasa Shiraki (16 patents)Hiroyuki NagashimaHiroyuki Nagashima (108 patents)Yasuo TakagiYasuo Takagi (57 patents)Koichi GotoKoichi Goto (45 patents)Katsuya YamashitaKatsuya Yamashita (41 patents)Taketo KatoTaketo Kato (41 patents)Tadashi KobayashiTadashi Kobayashi (40 patents)Kohta TakenakaKohta Takenaka (30 patents)Hirotoshi YoshidaHirotoshi Yoshida (29 patents)Yasuhiko SawadaYasuhiko Sawada (28 patents)Yoshiyuki ShibuyaYoshiyuki Shibuya (26 patents)Shoji KawachiShoji Kawachi (24 patents)Kazuya YamadaKazuya Yamada (24 patents)Takahiro TairaTakahiro Taira (17 patents)Kunihiko InuiKunihiko Inui (16 patents)Shigeru MorinagaShigeru Morinaga (12 patents)Tokuya OhjimiTokuya Ohjimi (12 patents)Hiroyuki YamauchiHiroyuki Yamauchi (12 patents)Tatsuro UchidaTatsuro Uchida (7 patents)Kazuhiko WatabeKazuhiko Watabe (3 patents)Kentaro TsukuyaKentaro Tsukuya (3 patents)Masaru MitsudaMasaru Mitsuda (3 patents)Yuko KawajiriYuko Kawajiri (11 patents)Hisao WatanabeHisao Watanabe (11 patents)Masafumi KomaiMasafumi Komai (5 patents)Kohei YasudaKohei Yasuda (3 patents)Nobuki UraokaNobuki Uraoka (10 patents)Masato YoshinoMasato Yoshino (7 patents)Shigeo KasaiShigeo Kasai (5 patents)Tomohisa KonishiTomohisa Konishi (4 patents)Kentaroh MatsumotoKentaroh Matsumoto (4 patents)Masato OgawaMasato Ogawa (4 patents)Yutaka NakataYutaka Nakata (4 patents)Takeshi WashioTakeshi Washio (4 patents)Osamu ShirasakiOsamu Shirasaki (2 patents)Takatoshi AsadaTakatoshi Asada (2 patents)Koichi NunokawaKoichi Nunokawa (2 patents)Takao NakagakiTakao Nakagaki (2 patents)Seiji FujiwaraSeiji Fujiwara (2 patents)Hisao OomuraHisao Oomura (2 patents)Shinichi MakinoShinichi Makino (1 patent)Hidenori HaradaHidenori Harada (1 patent)Kunihiko HonjiKunihiko Honji (1 patent)Ryoji YoshimuraRyoji Yoshimura (1 patent)Fuminobu TamaseFuminobu Tamase (1 patent)Yoshiteru IshiiYoshiteru Ishii (1 patent)Toshio ShimuraToshio Shimura (1 patent)Ryoji YoshimuraRyoji Yoshimura (1 patent)Shigeo KasaiShigeo Kasai (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Ricoh Company, Ltd. (14 from 28,566 patents)

2. Daikin Industries, Ltd. (7 from 4,279 patents)

3. Kabushiki Kaisha Toshiba (5 from 52,735 patents)

4. Astrazeneca Ab (3 from 1,500 patents)

5. Mitsubishi Heavy Industries Limited (4,629 patents)


29 patents:

1. 11440293 - Layered product

2. 11084895 - Modified polytetrafluoroethylene fine powder and uniaxially stretched porous body

3. 10688448 - Porous body, polymer electrolyte membrane, filter material for filter, and filter unit

4. 10081872 - Hydrogen production system and method for producing hydrogen

5. 9957626 - Hydrogen production system and method for producing hydrogen

6. 9238566 - Sheet cutting device and image forming apparatus including the sheet cutting device

7. 8967790 - Sheet cutting device and image forming apparatus including the sheet cutting device

8. 8967028 - Sheet cutting device and image forming apparatus including the sheet cutting device

9. 8955962 - Image forming apparatus including sheet cutting device

10. 8925436 - Sheet cutting device and image forming apparatus including the sheet cutting device

11. 8821051 - Image forming apparatus with openings for receiving rolls

12. 8790028 - Image forming apparatus with offset upper and lower sheet roll supporters

13. 8764182 - Image forming apparatus including sheet cutting device

14. 8657402 - Image forming apparatus including sheet cutting device

15. 8593651 - Image forming apparatus with shortened conveyance path of sheet roll

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