Growing community of inventors

Tokyo, Japan

Hirofumi Fujii

Average Co-Inventor Count = 4.32

ph-index = 2

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 = 31

Hirofumi FujiiNoriyuki Wada (2 patents)Hirofumi FujiiTetsuo Kimura (2 patents)Hirofumi FujiiDaiki Matsuura (2 patents)Hirofumi FujiiYutaka Ando (1 patent)Hirofumi FujiiYoshihiko Kimpara (1 patent)Hirofumi FujiiOsamu Kawaguchi (1 patent)Hirofumi FujiiKotaro Nakano (1 patent)Hirofumi FujiiSeiichi Tanaka (1 patent)Hirofumi FujiiHiromasa Yamagishi (1 patent)Hirofumi FujiiMasato Shibuya (1 patent)Hirofumi FujiiHikaru Futami (1 patent)Hirofumi FujiiHayami Yuasa (1 patent)Hirofumi FujiiKoju Sasaki (1 patent)Hirofumi FujiiTatuo Yonezawa (1 patent)Hirofumi FujiiNobuhiro Tsukamoto (1 patent)Hirofumi FujiiTomotaka Kasamatsu (1 patent)Hirofumi FujiiHirofumi Fujii (5 patents)Noriyuki WadaNoriyuki Wada (32 patents)Tetsuo KimuraTetsuo Kimura (31 patents)Daiki MatsuuraDaiki Matsuura (19 patents)Yutaka AndoYutaka Ando (46 patents)Yoshihiko KimparaYoshihiko Kimpara (41 patents)Osamu KawaguchiOsamu Kawaguchi (17 patents)Kotaro NakanoKotaro Nakano (16 patents)Seiichi TanakaSeiichi Tanaka (11 patents)Hiromasa YamagishiHiromasa Yamagishi (8 patents)Masato ShibuyaMasato Shibuya (6 patents)Hikaru FutamiHikaru Futami (5 patents)Hayami YuasaHayami Yuasa (2 patents)Koju SasakiKoju Sasaki (2 patents)Tatuo YonezawaTatuo Yonezawa (1 patent)Nobuhiro TsukamotoNobuhiro Tsukamoto (1 patent)Tomotaka KasamatsuTomotaka Kasamatsu (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Mitsubishi Electric Corporation (2 from 15,863 patents)

2. Nittan Company Limited (2 from 77 patents)

3. Kabushiki Kaisha Toshiba (1 from 52,722 patents)

4. Toshiba Medical Systems Corporation (1 from 2,018 patents)


5 patents:

1. 10581367 - Rotating-electric-machine control apparatus

2. 10027260 - Method of controlling rotary electric machine

3. 8244684 - Report searching apparatus and a method for searching a report

4. 4725819 - Fire detection system

5. 4524351 - Smoke detector

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as of
12/13/2025
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