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 YamadaTadashi Kobayashi (1 patent)Masahiko YamadaTaketo Kato (1 patent)Masahiko YamadaKohta Takenaka (1 patent)Masahiko YamadaYasuhiko Sawada (1 patent)Masahiko YamadaHirotoshi Yoshida (1 patent)Masahiko YamadaYoshiyuki Shibuya (1 patent)Masahiko YamadaKazuya Yamada (24 patents)Masahiko YamadaShoji Kawachi (1 patent)Masahiko YamadaTakahiro Taira (1 patent)Masahiko YamadaKunihiko Inui (1 patent)Masahiko YamadaHiroyuki Yamauchi (12 patents)Masahiko YamadaTatsuro Uchida (4 patents)Masahiko YamadaMasaru Mitsuda (3 patents)Masahiko YamadaKentaro Tsukuya (3 patents)Masahiko YamadaKazuhiko Watabe (3 patents)Masahiko YamadaYuko Kawajiri (2 patents)Masahiko YamadaHisao Watanabe (2 patents)Masahiko YamadaMasafumi Komai (2 patents)Masahiko YamadaKohei Yasuda (2 patents)Masahiko YamadaTokuya Ohjimi (1 patent)Masahiko YamadaShigeru Morinaga (1 patent)Masahiko YamadaNobuki Uraoka (1 patent)Masahiko YamadaMasato Yoshino (1 patent)Masahiko YamadaShigeo Kasai (1 patent)Masahiko YamadaTakeshi Washio (1 patent)Masahiko YamadaTomohisa Konishi (1 patent)Masahiko YamadaKentaroh Matsumoto (1 patent)Masahiko YamadaMasato Ogawa (4 patents)Masahiko YamadaYutaka Nakata (1 patent)Masahiko YamadaTakatoshi Asada (1 patent)Masahiko YamadaTakao Nakagaki (1 patent)Masahiko YamadaKoichi Nunokawa (2 patents)Masahiko YamadaSeiji Fujiwara (2 patents)Masahiko YamadaHisao Oomura (2 patents)Masahiko YamadaOsamu Shirasaki (1 patent)Masahiko YamadaToshio Shimura (1 patent)Masahiko YamadaRyoji Yoshimura (1 patent)Masahiko YamadaHidenori Harada (1 patent)Masahiko YamadaShinichi Makino (1 patent)Masahiko YamadaKunihiko Honji (1 patent)Masahiko YamadaFuminobu Tamase (1 patent)Masahiko YamadaYoshiteru Ishii (1 patent)Masahiko YamadaRyoji Yoshimura (1 patent)Masahiko YamadaTakatoshi Asada (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 (46 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)Tadashi KobayashiTadashi Kobayashi (40 patents)Taketo KatoTaketo Kato (38 patents)Kohta TakenakaKohta Takenaka (30 patents)Yasuhiko SawadaYasuhiko Sawada (28 patents)Hirotoshi YoshidaHirotoshi Yoshida (28 patents)Yoshiyuki ShibuyaYoshiyuki Shibuya (26 patents)Kazuya YamadaKazuya Yamada (24 patents)Shoji KawachiShoji Kawachi (24 patents)Takahiro TairaTakahiro Taira (17 patents)Kunihiko InuiKunihiko Inui (16 patents)Hiroyuki YamauchiHiroyuki Yamauchi (12 patents)Tatsuro UchidaTatsuro Uchida (7 patents)Masaru MitsudaMasaru Mitsuda (3 patents)Kentaro TsukuyaKentaro Tsukuya (3 patents)Kazuhiko WatabeKazuhiko Watabe (3 patents)Yuko KawajiriYuko Kawajiri (11 patents)Hisao WatanabeHisao Watanabe (11 patents)Masafumi KomaiMasafumi Komai (5 patents)Kohei YasudaKohei Yasuda (3 patents)Tokuya OhjimiTokuya Ohjimi (12 patents)Shigeru MorinagaShigeru Morinaga (12 patents)Nobuki UraokaNobuki Uraoka (10 patents)Masato YoshinoMasato Yoshino (7 patents)Shigeo KasaiShigeo Kasai (5 patents)Takeshi WashioTakeshi Washio (4 patents)Tomohisa KonishiTomohisa Konishi (4 patents)Kentaroh MatsumotoKentaroh Matsumoto (4 patents)Masato OgawaMasato Ogawa (4 patents)Yutaka NakataYutaka Nakata (4 patents)Takatoshi AsadaTakatoshi Asada (2 patents)Takao NakagakiTakao Nakagaki (2 patents)Koichi NunokawaKoichi Nunokawa (2 patents)Seiji FujiwaraSeiji Fujiwara (2 patents)Hisao OomuraHisao Oomura (2 patents)Osamu ShirasakiOsamu Shirasaki (2 patents)Toshio ShimuraToshio Shimura (1 patent)Ryoji YoshimuraRyoji Yoshimura (1 patent)Hidenori HaradaHidenori Harada (1 patent)Shinichi MakinoShinichi Makino (1 patent)Kunihiko HonjiKunihiko Honji (1 patent)Fuminobu TamaseFuminobu Tamase (1 patent)Yoshiteru IshiiYoshiteru Ishii (1 patent)Ryoji YoshimuraRyoji Yoshimura (1 patent)Takatoshi AsadaTakatoshi Asada (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 28,544 patents)

2. Daikin Industries, Ltd. (7 from 4,270 patents)

3. Kabushiki Kaisha Toshiba (5 from 52,711 patents)

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

5. Mitsubishi Heavy Industries Limited (4,618 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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