Growing community of inventors

Tokyo, Japan

Akira Koyama

Average Co-Inventor Count = 1.83

ph-index = 4

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 = 79

Akira KoyamaHideshi Iki (4 patents)Akira KoyamaYasutoshi Iguchi (4 patents)Akira KoyamaHideki Ono (3 patents)Akira KoyamaTatsuo Hamamatsu (3 patents)Akira KoyamaMasayoshi Nakajima (3 patents)Akira KoyamaTakanobu Hayakawa (2 patents)Akira KoyamaKazuaki Hayasaka (1 patent)Akira KoyamaToshihisa Nabata (1 patent)Akira KoyamaTakanori Hashizume (1 patent)Akira KoyamaKazuyoshi Suda (1 patent)Akira KoyamaAkinori Kanai (1 patent)Akira KoyamaAkira Koyama (15 patents)Hideshi IkiHideshi Iki (14 patents)Yasutoshi IguchiYasutoshi Iguchi (6 patents)Hideki OnoHideki Ono (63 patents)Tatsuo HamamatsuTatsuo Hamamatsu (9 patents)Masayoshi NakajimaMasayoshi Nakajima (6 patents)Takanobu HayakawaTakanobu Hayakawa (2 patents)Kazuaki HayasakaKazuaki Hayasaka (25 patents)Toshihisa NabataToshihisa Nabata (14 patents)Takanori HashizumeTakanori Hashizume (6 patents)Kazuyoshi SudaKazuyoshi Suda (2 patents)Akinori KanaiAkinori Kanai (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Kyocera Corporation (5 from 6,667 patents)

2. Jx Nippon Oil Energy Corporation (5 from 331 patents)

3. Juniper Networks, Inc. (4 from 4,739 patents)

4. Nec Corporation (1 from 35,756 patents)


15 patents:

1. 9505986 - Fuel oil base and aviation fuel composition containing same

2. 9464250 - Process for producing aviation fuel base oil

3. 9447333 - Aviation fuel base oil and aviation fuel composition

4. 9377361 - Human body detecting system

5. 9283552 - Method for producing aviation fuel oil base and aviation fuel oil composition

6. 9140762 - Mobile electronic device and method for controlling the same

7. 8784645 - Process for producing hydrocarbon oil

8. 8774877 - Mobile electronic device

9. 8615007 - Network switching system with asynchronous and isochronous interface

10. 8421405 - Charge system, mobile electronic device, cell terminal used for them, and secondary cell

11. 8392131 - Portable electronic device and method for controlling the same

12. 8249061 - Network switching system with asynchronous and isochronous interface

13. 7480290 - Network switching system with asynchronous and isochronous interface

14. 6987758 - Network switching system with asynchronous and isochronous interface

15. 6226361 - Communication method, voice transmission apparatus and voice reception apparatus

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as of
1/7/2026
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