Growing community of inventors

Tokyo, Japan

Tetsuo Yamamura

Average Co-Inventor Count = 1.50

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 = 8

Tetsuo YamamuraManabu Sato (1 patent)Tetsuo YamamuraSeiichi Murakami (1 patent)Tetsuo YamamuraTetsuo Yamamura (2 patents)Manabu SatoManabu Sato (11 patents)Seiichi MurakamiSeiichi Murakami (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Yumedia Co., Ltd. (2 from 2 patents)

2. Ceramic Industrial Co., Ltd. (1 from 1 patent)


2 patents:

1. 5380984 - Heater device of cigarette lighter and method of manufacturing the same

2. 5354968 - Battery powered electric cigarette lighter having snap together

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as of
12/17/2025
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