Growing community of inventors

Saitama, Japan

Hiroshi Orikawa

Average Co-Inventor Count = 6.15

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 = 18

Hiroshi OrikawaKenji Kobayashi (1 patent)Hiroshi OrikawaAkihiro Yamada (1 patent)Hiroshi OrikawaKazuyuki Takizawa (1 patent)Hiroshi OrikawaYoshiteru Kawakami (1 patent)Hiroshi OrikawaYoshiaki Haba (1 patent)Hiroshi OrikawaKeiji Maruta (1 patent)Hiroshi OrikawaHideki Okii (1 patent)Hiroshi OrikawaKazuto Naganuma (1 patent)Hiroshi OrikawaMinoru Otsuka (1 patent)Hiroshi OrikawaShigeru Miyazaki (1 patent)Hiroshi OrikawaMitsutoshi Kanetsuka (1 patent)Hiroshi OrikawaHiroshi Orikawa (2 patents)Kenji KobayashiKenji Kobayashi (104 patents)Akihiro YamadaAkihiro Yamada (45 patents)Kazuyuki TakizawaKazuyuki Takizawa (23 patents)Yoshiteru KawakamiYoshiteru Kawakami (20 patents)Yoshiaki HabaYoshiaki Haba (6 patents)Keiji MarutaKeiji Maruta (6 patents)Hideki OkiiHideki Okii (5 patents)Kazuto NaganumaKazuto Naganuma (3 patents)Minoru OtsukaMinoru Otsuka (2 patents)Shigeru MiyazakiShigeru Miyazaki (1 patent)Mitsutoshi KanetsukaMitsutoshi Kanetsuka (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Sony Corporation (2 from 58,130 patents)


2 patents:

1. D433407 - Drum for video tape recorder

2. 4773057 - Apparatus for reproducing selectively loaded discs of different diameters

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12/28/2025
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