Growing community of inventors

Yokohama, Japan

Toru Sema

Average Co-Inventor Count = 3.20

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 = 34

Toru SemaTatsuhiko Tsutsui (3 patents)Toru SemaKenichi Isobe (1 patent)Toru SemaTsuneo Umezawa (1 patent)Toru SemaTakao Ueki (1 patent)Toru SemaIwao Moriya (1 patent)Toru SemaSigeyosi Hatasa (1 patent)Toru SemaTsuneo Unezawa (1 patent)Toru SemaToru Sema (4 patents)Tatsuhiko TsutsuiTatsuhiko Tsutsui (3 patents)Kenichi IsobeKenichi Isobe (33 patents)Tsuneo UmezawaTsuneo Umezawa (2 patents)Takao UekiTakao Ueki (1 patent)Iwao MoriyaIwao Moriya (1 patent)Sigeyosi HatasaSigeyosi Hatasa (1 patent)Tsuneo UnezawaTsuneo Unezawa (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Lion Corporation (2 from 271 patents)

2. Shin-estu Chemical Co., Ltd. (1 from 24 patents)

3. The Lion Dentifrice Co., Ltd. (1 from 10 patents)

4. The Lion Dentrifice Co., Ltd. (1 from 3 patents)


4 patents:

1. 4455636 - Record cleaning device

2. 4378597 - Record cleaning device

3. 4166110 - Nail enamel composition and manufacturing method thereof

4. 4146511 - Resin compositions for peel-off coatings comprising a film-forming

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as of
12/10/2025
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