Growing community of inventors

Shiga, Japan

Hirofumi Tezuka

Average Co-Inventor Count = 2.57

ph-index = 3

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 = 161

Hirofumi TezukaEiichi Nagase (1 patent)Hirofumi TezukaKohzo Kitagawa (1 patent)Hirofumi TezukaKouji Nogami (1 patent)Hirofumi TezukaYasushi Baba (1 patent)Hirofumi TezukaToshihide Koyano (1 patent)Hirofumi TezukaHirofumi Tezuka (3 patents)Eiichi NagaseEiichi Nagase (2 patents)Kohzo KitagawaKohzo Kitagawa (1 patent)Kouji NogamiKouji Nogami (1 patent)Yasushi BabaYasushi Baba (1 patent)Toshihide KoyanoToshihide Koyano (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Kyocera Corporation (2 from 6,652 patents)

2. Kyoto Ceramic Co., Ltd. (1 from 21 patents)


3 patents:

1. 4841278 - Self-illuminant delineator and delineator system by use thereof

2. 4582953 - Solar cell module

3. 4486820 - Lighting equipment with a solar cell

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as of
12/12/2025
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