Growing community of inventors

Higashimurayama, Japan

Takashi Sugiyama

Average Co-Inventor Count = 2.71

ph-index = 7

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 = 120

Takashi SugiyamaYukitomo Yuhara (3 patents)Takashi SugiyamaMichiaki Kumagai (3 patents)Takashi SugiyamaKiyokazu Miyokawa (3 patents)Takashi SugiyamaNobuhisa Watanabe (1 patent)Takashi SugiyamaYuji Ideshita (1 patent)Takashi SugiyamaMasayuki Suzumori (1 patent)Takashi SugiyamaChihiro Kitoh (1 patent)Takashi SugiyamaFumiyoshi Fujita (1 patent)Takashi SugiyamaYosio Sakamaki (1 patent)Takashi SugiyamaYoshihumi Sakurai (1 patent)Takashi SugiyamaYuzi Ideshita (1 patent)Takashi SugiyamaTakashi Sugiyama (7 patents)Yukitomo YuharaYukitomo Yuhara (44 patents)Michiaki KumagaiMichiaki Kumagai (8 patents)Kiyokazu MiyokawaKiyokazu Miyokawa (3 patents)Nobuhisa WatanabeNobuhisa Watanabe (12 patents)Yuji IdeshitaYuji Ideshita (4 patents)Masayuki SuzumoriMasayuki Suzumori (1 patent)Chihiro KitohChihiro Kitoh (1 patent)Fumiyoshi FujitaFumiyoshi Fujita (1 patent)Yosio SakamakiYosio Sakamaki (1 patent)Yoshihumi SakuraiYoshihumi Sakurai (1 patent)Yuzi IdeshitaYuzi Ideshita (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Yoshida Industry Co., Ltd. (7 from 76 patents)

2. Pola Chemical Industries, Inc. (2 from 94 patents)


7 patents:

1. 6386209 - Cosmetic case

2. 6311701 - Cosmetic case

3. 6192895 - Cosmetic case

4. 5111972 - Creamy substance container

5. 4883079 - Make-up tool and holder assembly

6. 4580586 - Vanity case

7. 4505607 - Retractable-type cosmetic container with removable base

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as of
12/10/2025
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