Growing community of inventors

Tokyo, Japan

Hiromi Chiba

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 = 42

Hiromi ChibaHiroshi Sasou (2 patents)Hiromi ChibaAtsushi Yamazaki (1 patent)Hiromi ChibaShuichirou Tanaka (1 patent)Hiromi ChibaHiromi Chiba (2 patents)Hiroshi SasouHiroshi Sasou (7 patents)Atsushi YamazakiAtsushi Yamazaki (20 patents)Shuichirou TanakaShuichirou Tanaka (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Tamura Electric Works, Ltd. (2 from 60 patents)


2 patents:

1. 5714743 - Card and card issuing apparatus

2. 5661289 - Card and card check method

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as of
12/12/2025
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