Growing community of inventors

Hiroshima, Japan

Koichiro Hamaka

Average Co-Inventor Count = 4.00

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 = 3

Koichiro HamakaTakushi Ujimoto (3 patents)Koichiro HamakaMizuho Ueta (3 patents)Koichiro HamakaTakumi Kusayama (3 patents)Koichiro HamakaKoichiro Hamaka (3 patents)Takushi UjimotoTakushi Ujimoto (9 patents)Mizuho UetaMizuho Ueta (6 patents)Takumi KusayamaTakumi Kusayama (6 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Delta Kogyo Co., Ltd. (3 from 119 patents)


3 patents:

1. 9285823 - Shifting structure

2. 9102263 - Indicator for vehicle transmission shift operating device, and vehicle transmission shift operating device

3. 9032829 - Button structure of shift knob

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as of
12/28/2025
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