Growing community of inventors

Kanagawa, Japan

Masayoshi Morikawa

Average Co-Inventor Count = 3.92

ph-index = 5

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 = 112

Masayoshi MorikawaYoshitaka Matsumoto (3 patents)Masayoshi MorikawaNaoki Funakoshi (3 patents)Masayoshi MorikawaHisao Shirokoshi (3 patents)Masayoshi MorikawaEiji Ohshima (2 patents)Masayoshi MorikawaShinsaku Inada (2 patents)Masayoshi MorikawaHideaki Io (2 patents)Masayoshi MorikawaNobuhito Ebine (1 patent)Masayoshi MorikawaMasato Yamaoka (1 patent)Masayoshi MorikawaShogo Kato (1 patent)Masayoshi MorikawaYoshihisa Tsuchida (1 patent)Masayoshi MorikawaYoshitake Takahashi (1 patent)Masayoshi MorikawaYoshinori Shioyama (1 patent)Masayoshi MorikawaMasayoshi Morikawa (7 patents)Yoshitaka MatsumotoYoshitaka Matsumoto (4 patents)Naoki FunakoshiNaoki Funakoshi (3 patents)Hisao ShirokoshiHisao Shirokoshi (3 patents)Eiji OhshimaEiji Ohshima (16 patents)Shinsaku InadaShinsaku Inada (4 patents)Hideaki IoHideaki Io (2 patents)Nobuhito EbineNobuhito Ebine (30 patents)Masato YamaokaMasato Yamaoka (19 patents)Shogo KatoShogo Kato (11 patents)Yoshihisa TsuchidaYoshihisa Tsuchida (5 patents)Yoshitake TakahashiYoshitake Takahashi (4 patents)Yoshinori ShioyamaYoshinori Shioyama (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Sony Corporation (7 from 58,130 patents)


7 patents:

1. 7551220 - Image recording/reproducing device with dual-operated switch depending upon orientation of the device

2. 7310236 - Electronic device

3. 5822001 - Battery loading mechanism for a video camera-recorder

4. 5539463 - Cassette eject mechanism, battery loading mechanism and mechanical

5. 5530476 - Mechanical chassis supporting mechanism for recording and/or reproducing

6. 5306172 - Video tape recorder having built-in camera detachable hand grip member

7. 5157512 - Video tape recorder having built-in camera detachable hand grip member

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as of
12/20/2025
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