Growing community of inventors

Fuchu-cho, Japan

Takumi Kusayama

Average Co-Inventor Count = 2.18

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 = 14

Takumi KusayamaMizuho Ueta (5 patents)Takumi KusayamaTakushi Ujimoto (3 patents)Takumi KusayamaKoichiro Hamaka (3 patents)Takumi KusayamaIkuo Takatani (0 patent)Takumi KusayamaTakumi Kusayama (6 patents)Mizuho UetaMizuho Ueta (6 patents)Takushi UjimotoTakushi Ujimoto (9 patents)Koichiro HamakaKoichiro Hamaka (3 patents)Ikuo TakataniIkuo Takatani (0 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Delta Kogyo Co., Ltd. (6 from 119 patents)


6 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

4. 8312786 - Shift-lock mechanism for automatic transmission shifter

5. 7992463 - Shifter for automatic transmission

6. 7900534 - Shifter for vehicle transmission

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as of
1/10/2026
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