Growing community of inventors

Kashiwara, Japan

Osamu Kajii

Average Co-Inventor Count = 5.09

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 = 50

Osamu Kajii ↔ Yoshiki Somatomo (2 patents)Osamu Kajii ↔ Osamu Watanabe (2 patents)Osamu Kajii ↔ Kaoru Hisatomi (2 patents)Osamu Kajii ↔ Hiroshi Yoshida (1 patent)Osamu Kajii ↔ Toshiyuki Edamoto (1 patent)Osamu Kajii ↔ Tomio Kitamura (1 patent)Osamu KajiiOsamu Kajii (2 patents)Yoshiki SomatomoYoshiki Somatomo (13 patents)Osamu WatanabeOsamu Watanabe (10 patents)Kaoru HisatomiKaoru Hisatomi (6 patents)Hiroshi YoshidaHiroshi Yoshida (56 patents)Toshiyuki EdamotoToshiyuki Edamoto (4 patents)Tomio KitamuraTomio Kitamura (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Hitachi Maxell, Limited (2 from 1,112 patents)


2 patents:

1. 5017442 - Coiled lithium battery

2. 4971867 - Cylindrical organic electrolyte battery with a PTC device

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as of
12/6/2025
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