Growing community of inventors

Tokyo, Japan

Hiroshi Koyama

Average Co-Inventor Count = 2.87

ph-index = 12

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 = 438

Hiroshi KoyamaTadashi Nishioka (14 patents)Hiroshi KoyamaKazuto Kobayashi (12 patents)Hiroshi KoyamaYoji Mashiko (8 patents)Hiroshi KoyamaNobuyuki Hagiwara (7 patents)Hiroshi KoyamaTakao Yasue (6 patents)Hiroshi KoyamaIsao Shintou (6 patents)Hiroshi KoyamaHiroaki Morimoto (5 patents)Hiroshi KoyamaToshio Nakamura (5 patents)Hiroshi KoyamaJin Sato (4 patents)Hiroshi KoyamaMitsuru Kano (4 patents)Hiroshi KoyamaYasuhiro Kuroda (3 patents)Hiroshi KoyamaTakeru Kashiwagi (3 patents)Hiroshi KoyamaAkira Tange (2 patents)Hiroshi KoyamaShoji Yoshikawa (2 patents)Hiroshi KoyamaYasuo Sato (2 patents)Hiroshi KoyamaHiroshi Masuda (2 patents)Hiroshi KoyamaYoshitsugu Maruhashi (2 patents)Hiroshi KoyamaKatsuhiko Yamada (2 patents)Hiroshi KoyamaTakeshi Miura (2 patents)Hiroshi KoyamaRyo Ono (2 patents)Hiroshi KoyamaHitoshi Kanda (2 patents)Hiroshi KoyamaKazuhisa Ishibashi (2 patents)Hiroshi KoyamaKoji Sato (2 patents)Hiroshi KoyamaTatsuya Ogawa (2 patents)Hiroshi KoyamaYasushi Nishimura (2 patents)Hiroshi KoyamaNobuyuki Takakusaki (2 patents)Hiroshi KoyamaAtsushi Kume (2 patents)Hiroshi KoyamaYuu Yasuda (2 patents)Hiroshi KoyamaShinichi Koizumi (2 patents)Hiroshi KoyamaJun Umeno (2 patents)Hiroshi KoyamaShogo Sawai (2 patents)Hiroshi KoyamaSetsuko Iida (2 patents)Hiroshi KoyamaTokumasa Kikuchi (2 patents)Hiroshi KoyamaTetsurou Maruno (2 patents)Hiroshi KoyamaTakeshi Machida (2 patents)Hiroshi KoyamaMasahito Yamamoto (2 patents)Hiroshi KoyamaJun Tsukui (2 patents)Hiroshi KoyamaIkuo Sugiyama (2 patents)Hiroshi KoyamaKatsuyuki Nishioka (2 patents)Hiroshi KoyamaEisuke Chiba (2 patents)Hiroshi KoyamaKazuhiro Hiramoto (2 patents)Hiroshi KoyamaKosuke Ishiguro (2 patents)Hiroshi KoyamaTadayoshi Akutsu (2 patents)Hiroshi KoyamaKoichi Tamatsu (2 patents)Hiroshi KoyamaTadayuki Tsuda (1 patent)Hiroshi KoyamaReiko Miyazaki (1 patent)Hiroshi KoyamaTaku Sugawara (1 patent)Hiroshi KoyamaAkira Higeta (1 patent)Hiroshi KoyamaAkira Katsuyama (1 patent)Hiroshi KoyamaHisayuki Mukae (1 patent)Hiroshi KoyamaKazuto Nishizawa (1 patent)Hiroshi KoyamaMasaki Hiraga (1 patent)Hiroshi KoyamaAkira Ohno (1 patent)Hiroshi KoyamaTsutomu Nakajima (1 patent)Hiroshi KoyamaYoshinori Tsuji (1 patent)Hiroshi KoyamaKenji Okuma (1 patent)Hiroshi KoyamaMasateru Yasuhara (1 patent)Hiroshi KoyamaHidekazu Fumita (1 patent)Hiroshi KoyamaTakeshi Naka (1 patent)Hiroshi KoyamaMasahiro Yoneda (1 patent)Hiroshi KoyamaShuichi Nagano (1 patent)Hiroshi KoyamaMichihiro Kobayashi (1 patent)Hiroshi KoyamaRyota Yasui (1 patent)Hiroshi KoyamaMasato Sugawara (1 patent)Hiroshi KoyamaShiro Hine (1 patent)Hiroshi KoyamaTomonori Kitan (1 patent)Hiroshi KoyamaTsutomu Furuyama (1 patent)Hiroshi KoyamaTakashi Koya (1 patent)Hiroshi KoyamaKanji Inoue (1 patent)Hiroshi KoyamaShotaro Ishihara (1 patent)Hiroshi KoyamaTakahiro Nakamura (1 patent)Hiroshi KoyamaTakashi Ishizuka (1 patent)Hiroshi KoyamaHironobu Nagashima (1 patent)Hiroshi KoyamaAtsushi Endo (1 patent)Hiroshi KoyamaYoshihiro Koshita (1 patent)Hiroshi KoyamaKeiichi Asakura (1 patent)Hiroshi KoyamaKensaku Miyazaki (5 patents)Hiroshi KoyamaIkuzo Okamoto (1 patent)Hiroshi KoyamaAkihiro Katsuya (1 patent)Hiroshi KoyamaMasami Ishikawa (1 patent)Hiroshi KoyamaShingo Mouri (1 patent)Hiroshi KoyamaOsamu Shindow (1 patent)Hiroshi KoyamaYuhei Hashimoto (4 patents)Hiroshi KoyamaMizuki Watanabe (1 patent)Hiroshi KoyamaTakahiro Hirai (1 patent)Hiroshi KoyamaTakahiro Taneda (3 patents)Hiroshi KoyamaMinoru Omura (1 patent)Hiroshi KoyamaHiroshi Machida (1 patent)Hiroshi KoyamaKouhei Mori (1 patent)Hiroshi KoyamaYuuichi Tanabe (1 patent)Hiroshi KoyamaYasuaki Tsuji (1 patent)Hiroshi KoyamaHiroaki Ozawa (1 patent)Hiroshi KoyamaDaiki Urakubo (1 patent)Hiroshi KoyamaYu Yasuda (1 patent)Hiroshi KoyamaYusuke Haruna (1 patent)Hiroshi KoyamaKyoko Kuroki (1 patent)Hiroshi KoyamaHiroshi Masuya (1 patent)Hiroshi KoyamaFumiaki Kimura (1 patent)Hiroshi KoyamaKietsu Kudo (0 patent)Hiroshi KoyamaShogo Oppata (0 patent)Hiroshi KoyamaHiroshi Koyama (72 patents)Tadashi NishiokaTadashi Nishioka (33 patents)Kazuto KobayashiKazuto Kobayashi (119 patents)Yoji MashikoYoji Mashiko (16 patents)Nobuyuki HagiwaraNobuyuki Hagiwara (41 patents)Takao YasueTakao Yasue (23 patents)Isao ShintouIsao Shintou (8 patents)Hiroaki MorimotoHiroaki Morimoto (12 patents)Toshio NakamuraToshio Nakamura (7 patents)Jin SatoJin Sato (42 patents)Mitsuru KanoMitsuru Kano (13 patents)Yasuhiro KurodaYasuhiro Kuroda (5 patents)Takeru KashiwagiTakeru Kashiwagi (5 patents)Akira TangeAkira Tange (141 patents)Shoji YoshikawaShoji Yoshikawa (84 patents)Yasuo SatoYasuo Sato (56 patents)Hiroshi MasudaHiroshi Masuda (50 patents)Yoshitsugu MaruhashiYoshitsugu Maruhashi (36 patents)Katsuhiko YamadaKatsuhiko Yamada (31 patents)Takeshi MiuraTakeshi Miura (28 patents)Ryo OnoRyo Ono (27 patents)Hitoshi KandaHitoshi Kanda (26 patents)Kazuhisa IshibashiKazuhisa Ishibashi (26 patents)Koji SatoKoji Sato (20 patents)Tatsuya OgawaTatsuya Ogawa (19 patents)Yasushi NishimuraYasushi Nishimura (12 patents)Nobuyuki TakakusakiNobuyuki Takakusaki (11 patents)Atsushi KumeAtsushi Kume (11 patents)Yuu YasudaYuu Yasuda (9 patents)Shinichi KoizumiShinichi Koizumi (8 patents)Jun UmenoJun Umeno (8 patents)Shogo SawaiShogo Sawai (7 patents)Setsuko IidaSetsuko Iida (7 patents)Tokumasa KikuchiTokumasa Kikuchi (7 patents)Tetsurou MarunoTetsurou Maruno (6 patents)Takeshi MachidaTakeshi Machida (5 patents)Masahito YamamotoMasahito Yamamoto (3 patents)Jun TsukuiJun Tsukui (3 patents)Ikuo SugiyamaIkuo Sugiyama (3 patents)Katsuyuki NishiokaKatsuyuki Nishioka (3 patents)Eisuke ChibaEisuke Chiba (3 patents)Kazuhiro HiramotoKazuhiro Hiramoto (2 patents)Kosuke IshiguroKosuke Ishiguro (2 patents)Tadayoshi AkutsuTadayoshi Akutsu (2 patents)Koichi TamatsuKoichi Tamatsu (2 patents)Tadayuki TsudaTadayuki Tsuda (86 patents)Reiko MiyazakiReiko Miyazaki (70 patents)Taku SugawaraTaku Sugawara (59 patents)Akira HigetaAkira Higeta (40 patents)Akira KatsuyamaAkira Katsuyama (36 patents)Hisayuki MukaeHisayuki Mukae (32 patents)Kazuto NishizawaKazuto Nishizawa (27 patents)Masaki HiragaMasaki Hiraga (24 patents)Akira OhnoAkira Ohno (22 patents)Tsutomu NakajimaTsutomu Nakajima (21 patents)Yoshinori TsujiYoshinori Tsuji (20 patents)Kenji OkumaKenji Okuma (20 patents)Masateru YasuharaMasateru Yasuhara (19 patents)Hidekazu FumitaHidekazu Fumita (17 patents)Takeshi NakaTakeshi Naka (16 patents)Masahiro YonedaMasahiro Yoneda (16 patents)Shuichi NaganoShuichi Nagano (14 patents)Michihiro KobayashiMichihiro Kobayashi (13 patents)Ryota YasuiRyota Yasui (10 patents)Masato SugawaraMasato Sugawara (10 patents)Shiro HineShiro Hine (10 patents)Tomonori KitanTomonori Kitan (10 patents)Tsutomu FuruyamaTsutomu Furuyama (9 patents)Takashi KoyaTakashi Koya (9 patents)Kanji InoueKanji Inoue (8 patents)Shotaro IshiharaShotaro Ishihara (7 patents)Takahiro NakamuraTakahiro Nakamura (7 patents)Takashi IshizukaTakashi Ishizuka (7 patents)Hironobu NagashimaHironobu Nagashima (7 patents)Atsushi EndoAtsushi Endo (7 patents)Yoshihiro KoshitaYoshihiro Koshita (7 patents)Keiichi AsakuraKeiichi Asakura (5 patents)Kensaku MiyazakiKensaku Miyazaki (5 patents)Ikuzo OkamotoIkuzo Okamoto (5 patents)Akihiro KatsuyaAkihiro Katsuya (4 patents)Masami IshikawaMasami Ishikawa (4 patents)Shingo MouriShingo Mouri (4 patents)Osamu ShindowOsamu Shindow (4 patents)Yuhei HashimotoYuhei Hashimoto (4 patents)Mizuki WatanabeMizuki Watanabe (3 patents)Takahiro HiraiTakahiro Hirai (3 patents)Takahiro TanedaTakahiro Taneda (3 patents)Minoru OmuraMinoru Omura (3 patents)Hiroshi MachidaHiroshi Machida (3 patents)Kouhei MoriKouhei Mori (2 patents)Yuuichi TanabeYuuichi Tanabe (2 patents)Yasuaki TsujiYasuaki Tsuji (1 patent)Hiroaki OzawaHiroaki Ozawa (1 patent)Daiki UrakuboDaiki Urakubo (1 patent)Yu YasudaYu Yasuda (1 patent)Yusuke HarunaYusuke Haruna (1 patent)Kyoko KurokiKyoko Kuroki (1 patent)Hiroshi MasuyaHiroshi Masuya (1 patent)Fumiaki KimuraFumiaki Kimura (1 patent)Kietsu KudoKietsu Kudo (0 patent)Shogo OppataShogo Oppata (0 patent)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Mitsubishi Denki Kabushiki Kaisha (17 from 21,351 patents)

2. Nsk Corporation (16 from 2,433 patents)

3. Canon Kabushiki Kaisha (8 from 90,809 patents)

4. Nhk Spring Co., Ltd. (5 from 1,233 patents)

5. Sony Corporation (4 from 58,132 patents)

6. Toppan Printing Co., Ltd. (4 from 1,268 patents)

7. Morpho (4 from 188 patents)

8. Asahi Kogaku Kogyo Kabushiki Kaisha (3 from 3,132 patents)

9. Daicel Corporation (3 from 646 patents)

10. Toyo Seikan Kaisha, Ltd. (2 from 586 patents)

11. Mitsubishi Electric Corporation (1 from 15,942 patents)

12. Dena Co., Ltd. (1 from 166 patents)

13. Kabushiki Kaisha Toshiba (52,766 patents)

14. Toshiba Energy Systems & Solutions Corporation (305 patents)

15. Daido Tokushuko Kabushiki Kaisha (248 patents)


72 patents:

1. 12479731 - Surface-modified nanodiamonds and method for producing surface-modified nano carbon particles

2. 12441619 - Surface-modified nanodiamonds and method for producing surface-modified nano carbon particles

3. 12391554 - Surface-modified nanodiamond, nanodiamond dispersion composition, and method for manufacturing surface-modified nanocarbon particles

4. 12209614 - Bearing element manufacturing method, bearing manufacturing method, machine manufacturing method, vehicle manufacturing method, bearing element, bearing, machine, and vehicle

5. 12110206 - Image forming apparatus

6. 11904383 - Orbital forging device, method for orbital forging, method for manufacturing hub unit bearing using method for orbital forging, and method for manufacturing vehicle

7. 11560619 - Laminate and method of producing the same, and gas barrier film and method of producing the same

8. 11520257 - Image forming apparatus

9. 11170262 - Training system, training device, method for training, training data creation device, training data creation method, terminal device, and threshold value changing device

10. 11162538 - Method and device for manufacturing bearing unit

11. 11151696 - Image processing apparatus, image processing method, and non-transitory computer-readable medium

12. 11103917 - Orbital forging device, method for orbital forging, method for manufacturing hub unit bearing using method for orbital forging, and method for manufacturing vehicle

13. 11005065 - Laminate comprising tantalum oxide and method of producing the same, gas barrier film and method of producing the same, and organic light-emitting element

14. 10915056 - Drum cartridge and method for manufacturing drum cartridge

15. 10557505 - Method and device for manufacturing bearing unit

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