Growing community of inventors

Yokohama, Japan

Hirofumi Ogawa

Average Co-Inventor Count = 8.00

ph-index = 1

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 = 0

Hirofumi Ogawa ↔ Kenji Arai (2 patents)Hirofumi Ogawa ↔ Tetsuo Oomori (2 patents)Hirofumi Ogawa ↔ Kentaro Toda (2 patents)Hirofumi Ogawa ↔ Manabu Miyazawa (2 patents)Hirofumi Ogawa ↔ Kenichiro Nagatomo (2 patents)Hirofumi Ogawa ↔ Tsuguto Maruko (2 patents)Hirofumi Ogawa ↔ Toru Ueno (1 patent)Hirofumi Ogawa ↔ Touru Ueno (1 patent)Hirofumi OgawaHirofumi Ogawa (2 patents)Kenji AraiKenji Arai (82 patents)Tetsuo OomoriTetsuo Oomori (8 patents)Kentaro TodaKentaro Toda (4 patents)Manabu MiyazawaManabu Miyazawa (2 patents)Kenichiro NagatomoKenichiro Nagatomo (2 patents)Tsuguto MarukoTsuguto Maruko (2 patents)Toru UenoToru Ueno (4 patents)Touru UenoTouru Ueno (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Lapis Semiconductor Co., Ltd. (2 from 702 patents)


2 patents:

1. 10433420 - Circuit board device and printed wiring board

2. 10375819 - Circuit board device

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as of
12/12/2025
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