Growing community of inventors

Tokyo, Japan

Seiichiro Tamura

Average Co-Inventor Count = 2.57

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 = 43

Seiichiro TamuraKazuyoshi Ohshima (3 patents)Seiichiro TamuraTatsuya Hayakawa (1 patent)Seiichiro TamuraKen Tsuneki (1 patent)Seiichiro TamuraYojiro Nakayama (1 patent)Seiichiro TamuraSeiji Sugasawara (1 patent)Seiichiro TamuraSeiichiro Tamura (3 patents)Kazuyoshi OhshimaKazuyoshi Ohshima (14 patents)Tatsuya HayakawaTatsuya Hayakawa (7 patents)Ken TsunekiKen Tsuneki (5 patents)Yojiro NakayamaYojiro Nakayama (4 patents)Seiji SugasawaraSeiji Sugasawara (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Sugatsune Industrial Co., Ltd. (3 from 42 patents)


3 patents:

1. 5143432 - Mechanism for controlling the travel of a structural member

2. 5135294 - Mechanism for controlling the travel of a structural member

3. 5011029 - Coat lift hanger

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as of
1/5/2026
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