Growing community of inventors

Tokyo, Japan

Sunao Nishioka

Average Co-Inventor Count = 1.97

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 = 36

Sunao NishiokaNobuo Matsukawa (2 patents)Sunao NishiokaRyuichi Mori (2 patents)Sunao NishiokaYoshiyuki Nakano (1 patent)Sunao NishiokaKeiji Ohsawa (1 patent)Sunao NishiokaMikio Takemae (1 patent)Sunao NishiokaTetsuo Goto (1 patent)Sunao NishiokaSunao Nishioka (5 patents)Nobuo MatsukawaNobuo Matsukawa (13 patents)Ryuichi MoriRyuichi Mori (7 patents)Yoshiyuki NakanoYoshiyuki Nakano (25 patents)Keiji OhsawaKeiji Ohsawa (17 patents)Mikio TakemaeMikio Takemae (9 patents)Tetsuo GotoTetsuo Goto (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Nikon Corporation (4 from 8,902 patents)

2. Nippon Kagaku K.k. (1 from 4 patents)


5 patents:

1. 5659814 - Camera

2. 5532782 - Camera having a depth priority operation mode

3. 5515127 - Structure for fixing electric driving device to camera body

4. 5499074 - Autofocus camera

5. 4707105 - Apparatus for fixing exposure and focus in camera

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as of
1/10/2026
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