Growing community of inventors

Nara, Japan

Hiroo Katsura

Average Co-Inventor Count = 4.13

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 = 7

Hiroo KatsuraKazuya Koyama (1 patent)Hiroo KatsuraJunji Tanaka (1 patent)Hiroo KatsuraKazuhiko Takata (1 patent)Hiroo KatsuraKatsunori Takeda (1 patent)Hiroo KatsuraKeiji Yao (1 patent)Hiroo KatsuraShinsuke Otsuka (1 patent)Hiroo KatsuraShoichi Maeda (1 patent)Hiroo KatsuraTakafumi Nagato (1 patent)Hiroo KatsuraYusuke Suzuoki (1 patent)Hiroo KatsuraTsutomu Takahara (1 patent)Hiroo KatsuraHiroo Katsura (3 patents)Kazuya KoyamaKazuya Koyama (31 patents)Junji TanakaJunji Tanaka (16 patents)Kazuhiko TakataKazuhiko Takata (4 patents)Katsunori TakedaKatsunori Takeda (4 patents)Keiji YaoKeiji Yao (2 patents)Shinsuke OtsukaShinsuke Otsuka (1 patent)Shoichi MaedaShoichi Maeda (1 patent)Takafumi NagatoTakafumi Nagato (1 patent)Yusuke SuzuokiYusuke Suzuoki (1 patent)Tsutomu TakaharaTsutomu Takahara (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Sharp Kabushiki Kaisha Corporation (3 from 25,537 patents)


3 patents:

1. 5467458 - Optical character reader with internal memory and data processor

2. 4727502 - Programmable electronic calculator

3. 4658270 - Recording apparatus

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as of
12/15/2025
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