Growing community of inventors

Koganei, Japan

Masakatu Iwasaki

Average Co-Inventor Count = 3.00

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 = 12

Masakatu Iwasaki ↔ Kazunori Hashimoto (2 patents)Masakatu Iwasaki ↔ Noboru Chiba (1 patent)Masakatu Iwasaki ↔ Hideyo Hyuga (1 patent)Masakatu IwasakiMasakatu Iwasaki (2 patents)Kazunori HashimotoKazunori Hashimoto (39 patents)Noboru ChibaNoboru Chiba (10 patents)Hideyo HyugaHideyo Hyuga (4 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Hitachi, Ltd. (2 from 42,517 patents)


2 patents:

1. D286405 - Video camera

2. D277849 - Video tape recorder

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as of
1/9/2026
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