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Daito, Japan

Hitoshi Yasutomi

Average Co-Inventor Count = 3.46

ph-index = 1

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 = 1

Hitoshi YasutomiKoichiro Hirabayashi (3 patents)Hitoshi YasutomiAkio Konishi (2 patents)Hitoshi YasutomiHiroshi Kanchiku (2 patents)Hitoshi YasutomiTakefumi Yanagihara (1 patent)Hitoshi YasutomiHitoshi Yasutomi (3 patents)Koichiro HirabayashiKoichiro Hirabayashi (81 patents)Akio KonishiAkio Konishi (68 patents)Hiroshi KanchikuHiroshi Kanchiku (10 patents)Takefumi YanagiharaTakefumi Yanagihara (8 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

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


3 patents:

1. 7248430 - Magnetic recording and reproduction apparatus

2. 7180698 - Magnetic recording and reproduction apparatus

3. 6172840 - Magnetic recording/reproduction apparatus including a rotary head cylinder and both vertical and inclined guides for winding a magnetic tape about the rotary head cylinder

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as of
1/5/2026
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