Growing community of inventors

Tokyo, Japan

Aki Koyabu

Average Co-Inventor Count = 4.00

ph-index = 2

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 = 20

Aki KoyabuMitsuru Nagasaka (4 patents)Aki KoyabuTomoko Oyabu (4 patents)Aki KoyabuTomoyuki Hanai (3 patents)Aki KoyabuTomoko Terakado (1 patent)Aki KoyabuAki Koyabu (4 patents)Mitsuru NagasakaMitsuru Nagasaka (5 patents)Tomoko OyabuTomoko Oyabu (4 patents)Tomoyuki HanaiTomoyuki Hanai (44 patents)Tomoko TerakadoTomoko Terakado (20 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Sony Corporation (4 from 58,132 patents)


4 patents:

1. 7797714 - Information processing apparatus for searching broadcast program and method therefore

2. 7657909 - Information receiving apparatus and method for receiving headline information

3. 7587731 - Program guide information providing device, program device information providing system, information receiving device, remote operating system, and method thereof

4. 7379655 - Information searching device, information receiver, and methods therefor

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as of
1/11/2026
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