Growing community of inventors

Tokyo, Japan

Sachiko Kawaguchi

Average Co-Inventor Count = 4.00

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 = 8

Sachiko KawaguchiHiroshi Uranaka (2 patents)Sachiko KawaguchiHidenori Ishii (1 patent)Sachiko KawaguchiMasahide Morozumi (1 patent)Sachiko KawaguchiNoritoshi Ogasawara (1 patent)Sachiko KawaguchiJunichi Morita (1 patent)Sachiko KawaguchiSachiko Kawaguchi (2 patents)Hiroshi UranakaHiroshi Uranaka (8 patents)Hidenori IshiiHidenori Ishii (9 patents)Masahide MorozumiMasahide Morozumi (4 patents)Noritoshi OgasawaraNoritoshi Ogasawara (3 patents)Junichi MoritaJunichi Morita (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Matsushita Electric Industrial Co., Ltd. (2 from 27,375 patents)


2 patents:

1. 7308478 - Communication terminal, server unit, mail incoming notification method and system, and mail sending and receiving method

2. 7027583 - Telephone speech control system, intermediate processing device, and exchange

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1/4/2026
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