Growing community of inventors

Tochigi, Japan

Keiko Shibuki

Average Co-Inventor Count = 8.00

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

Keiko Shibuki ↔ Yoshiaki Watanabe (1 patent)Keiko Shibuki ↔ Sakae Tanaka (1 patent)Keiko Shibuki ↔ Yoshihisa Ogiwara (1 patent)Keiko Shibuki ↔ Katsuo Shirai (1 patent)Keiko Shibuki ↔ Noboru Motai (1 patent)Keiko Shibuki ↔ Yaeko Suzuki (1 patent)Keiko Shibuki ↔ Kazunori Saito (1 patent)Keiko ShibukiKeiko Shibuki (1 patent)Yoshiaki WatanabeYoshiaki Watanabe (83 patents)Sakae TanakaSakae Tanaka (32 patents)Yoshihisa OgiwaraYoshihisa Ogiwara (13 patents)Katsuo ShiraiKatsuo Shirai (11 patents)Noboru MotaiNoboru Motai (4 patents)Yaeko SuzukiYaeko Suzuki (1 patent)Kazunori SaitoKazunori Saito (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Seikosha Co., Ltd. (1 from 696 patents)

2. Nippon Precision Circuits Inc. (1 from 100 patents)


1 patent:

1. 4892613 - Process for etching light-shielding thin film

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12/24/2025
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