Growing community of inventors

Osaka, Japan

Koichi Hazumi

Average Co-Inventor Count = 2.00

ph-index = 3

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 = 100

Koichi HazumiTetsuya Miyatake (3 patents)Koichi HazumiKoichi Hazumi (3 patents)Tetsuya MiyatakeTetsuya Miyatake (18 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Patlite Corporation (3 from 64 patents)


3 patents:

1. D695951 - Lighting device

2. D681261 - Lighting device

3. D671254 - Lighting device

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as of
12/16/2025
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