Growing community of inventors

Gunma, Japan

Mitsuhiro Katayama

Average Co-Inventor Count = 5.00

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 = 13

Mitsuhiro Katayama ↔ Ulf F Engstrom (3 patents)Mitsuhiro Katayama ↔ Kazuyoshi Oka (3 patents)Mitsuhiro Katayama ↔ Kenkichi Hara (2 patents)Mitsuhiro Katayama ↔ Svenn-Erik Larssen (1 patent)Mitsuhiro Katayama ↔ Toshihiko Kohno (1 patent)Mitsuhiro Katayama ↔ Svenn E Larssen (1 patent)Mitsuhiro Katayama ↔ Svenn E Larrssen (1 patent)Mitsuhiro KatayamaMitsuhiro Katayama (3 patents)Ulf F EngstromUlf F Engstrom (8 patents)Kazuyoshi OkaKazuyoshi Oka (5 patents)Kenkichi HaraKenkichi Hara (5 patents)Svenn-Erik LarssenSvenn-Erik Larssen (1 patent)Toshihiko KohnoToshihiko Kohno (1 patent)Svenn E LarssenSvenn E Larssen (1 patent)Svenn E LarrssenSvenn E Larrssen (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Hoganas Ab (3 from 79 patents)

2. Kanto Denka Kogyo Co., Ltd. (3 from 76 patents)


3 patents:

1. 4751164 - Method of making carrier for use in electrophotographic developers

2. 4732835 - Carrier for use in electrophotographic developers

3. 4663262 - Carrier for use in electrophotographic developers

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as of
12/31/2025
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