Growing community of inventors

Osaka, Japan

Takashi Koizumi

Average Co-Inventor Count = 3.78

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 = 37

Takashi KoizumiTakerou Nakagawa (3 patents)Takashi KoizumiYasumasa Tsubakimoto (3 patents)Takashi KoizumiMakoto Kanehira (2 patents)Takashi KoizumiFumio Ochiai (2 patents)Takashi KoizumiMasaaki Ikeda (1 patent)Takashi KoizumiYoshito Date (1 patent)Takashi KoizumiTakehiro Ui (1 patent)Takashi KoizumiHidetsugu Maekawa (1 patent)Takashi KoizumiKazumasa Matsuno (1 patent)Takashi KoizumiOsamu Sarai (1 patent)Takashi KoizumiKouji Tanaka (1 patent)Takashi KoizumiYoshio Imamura (1 patent)Takashi KoizumiTakashi Tsujimoto (1 patent)Takashi KoizumiNoriko Kaku (1 patent)Takashi KoizumiSeiichi Moriyama (1 patent)Takashi KoizumiNaoto Osaka (1 patent)Takashi KoizumiMakato Kanehira (1 patent)Takashi KoizumiHiroyuki Kageyama (1 patent)Takashi KoizumiTetsurou Ohmori (1 patent)Takashi KoizumiHiroyuki Morinaga (1 patent)Takashi KoizumiYumiko Kataoka (1 patent)Takashi KoizumiTakashi Koizumi (7 patents)Takerou NakagawaTakerou Nakagawa (9 patents)Yasumasa TsubakimotoYasumasa Tsubakimoto (6 patents)Makoto KanehiraMakoto Kanehira (27 patents)Fumio OchiaiFumio Ochiai (3 patents)Masaaki IkedaMasaaki Ikeda (32 patents)Yoshito DateYoshito Date (23 patents)Takehiro UiTakehiro Ui (22 patents)Hidetsugu MaekawaHidetsugu Maekawa (19 patents)Kazumasa MatsunoKazumasa Matsuno (19 patents)Osamu SaraiOsamu Sarai (6 patents)Kouji TanakaKouji Tanaka (4 patents)Yoshio ImamuraYoshio Imamura (4 patents)Takashi TsujimotoTakashi Tsujimoto (3 patents)Noriko KakuNoriko Kaku (2 patents)Seiichi MoriyamaSeiichi Moriyama (1 patent)Naoto OsakaNaoto Osaka (1 patent)Makato KanehiraMakato Kanehira (1 patent)Hiroyuki KageyamaHiroyuki Kageyama (1 patent)Tetsurou OhmoriTetsurou Ohmori (1 patent)Hiroyuki MorinagaHiroyuki Morinaga (1 patent)Yumiko KataokaYumiko Kataoka (1 patent)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Matsushita Electric Industrial Co., Ltd. (3 from 27,375 patents)

2. Tsubakimoto Chain Company (3 from 906 patents)

3. Nitto-denko Corporation (1 from 3,869 patents)


7 patents:

1. 7855250 - Filling foam composition, foam filling member, and filling foam

2. 7271808 - Image display control method and image display control apparatus

3. 5841317 - Differential amplifier circuit with a high through put rate and reduced

4. 5276822 - System with enhanced execution of address-conflicting instructions using

5. 5087132 - Bearing having bearing surface of cloth

6. 4755163 - Push-drive chain

7. 4724669 - Filament-wound cylindrical element for chain

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12/13/2025
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