Growing community of inventors

Tokyo, Japan

Eiji Miyakawa

Average Co-Inventor Count = 1.22

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 = 96

Eiji MiyakawaHiroshi Nakayama (3 patents)Eiji MiyakawaTsutomu Kawachi (3 patents)Eiji MiyakawaMasayuki Takada (2 patents)Eiji MiyakawaShuhei Sonoda (2 patents)Eiji MiyakawaMasayuki Chatani (1 patent)Eiji MiyakawaMasato Kawada (1 patent)Eiji MiyakawaRyota Sakamoto (1 patent)Eiji MiyakawaSumio Okada (1 patent)Eiji MiyakawaKensuke Onuma (1 patent)Eiji MiyakawaIkuo Kobori (1 patent)Eiji MiyakawaYoshio Tsuda (1 patent)Eiji MiyakawaChika Miura (1 patent)Eiji MiyakawaEiji Miyakawa (18 patents)Hiroshi NakayamaHiroshi Nakayama (82 patents)Tsutomu KawachiTsutomu Kawachi (20 patents)Masayuki TakadaMasayuki Takada (56 patents)Shuhei SonodaShuhei Sonoda (14 patents)Masayuki ChataniMasayuki Chatani (59 patents)Masato KawadaMasato Kawada (12 patents)Ryota SakamotoRyota Sakamoto (5 patents)Sumio OkadaSumio Okada (3 patents)Kensuke OnumaKensuke Onuma (2 patents)Ikuo KoboriIkuo Kobori (1 patent)Yoshio TsudaYoshio Tsuda (1 patent)Chika MiuraChika Miura (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Miyakawa Industry Co., Ltd. (14 from 20 patents)

2. Sony Corporation (4 from 58,129 patents)


18 patents:

1. 10108981 - Controlling content distribution using multiple devices

2. 9652598 - Information processing device, control method, and storage medium

3. 9626217 - Information processing apparatus, information processing method, recording medium and information processing system

4. 8973005 - Information processing apparatus, information processing method, recording medium and information processing system

5. 4650376 - Structure for installing a multispindle attachment on a drilling machine

6. 4610578 - Hole machining device

7. 4577875 - Exchange chuck for a tool

8. 4517857 - Gear interference preventing mechanism in multi-spindle head attachment

9. D276727 - Holder for multiple spindle attachment

10. D276728 - Holder for multiple spindle attachment

11. 4385854 - Collet chuck assembly for taps

12. 4365916 - Turning type multi-spindle attachment

13. D265654 - Guide plate for a multiple spindle attachment for drilling and tapping

14. 4320997 - Spindle holder guide member for multiple spindle attachment

15. 4305189 - Attachment member for multiple-spindle head

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as of
12/5/2025
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