Growing community of inventors

Suita, Japan

Kei Nakahara

Average Co-Inventor Count = 1.97

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 = 89

Kei NakaharaMasato Fujii (3 patents)Kei NakaharaKouichi Tomita (3 patents)Kei NakaharaKeiichi Sakurai (2 patents)Kei NakaharaHironori Yoshimura (2 patents)Kei NakaharaShinya Satomi (2 patents)Kei NakaharaToshihiko Okamura (1 patent)Kei NakaharaNoribumi Kikuchi (1 patent)Kei NakaharaHitoshi Kunugi (1 patent)Kei NakaharaHiroyuki Eto (1 patent)Kei NakaharaMitsunori Nakatsuka (1 patent)Kei NakaharaYoshihiro Sawada (1 patent)Kei NakaharaKiyoshi Miyake (1 patent)Kei NakaharaKei Nakahara (8 patents)Masato FujiiMasato Fujii (14 patents)Kouichi TomitaKouichi Tomita (7 patents)Keiichi SakuraiKeiichi Sakurai (33 patents)Hironori YoshimuraHironori Yoshimura (22 patents)Shinya SatomiShinya Satomi (3 patents)Toshihiko OkamuraToshihiko Okamura (15 patents)Noribumi KikuchiNoribumi Kikuchi (5 patents)Hitoshi KunugiHitoshi Kunugi (4 patents)Hiroyuki EtoHiroyuki Eto (1 patent)Mitsunori NakatsukaMitsunori Nakatsuka (1 patent)Yoshihiro SawadaYoshihiro Sawada (1 patent)Kiyoshi MiyakeKiyoshi Miyake (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Konica Minolta, Inc. (6 from 4,226 patents)

2. Mitsubishi Metal Corporation (2 from 68 patents)


8 patents:

1. 10623449 - Communication mediation system, communication mediation device, communication mediation method, and communication mediation program

2. 10616359 - Information communication system, intermediate server, and recording medium

3. 10534570 - Image forming system for relaying communication between a server on an internet and an image forming device, relay server, communication controlling method and non-transitory computer readable recording medium

4. 9628642 - Information processing system, license server, communication relay device, non-transitory readable recording medium and data restoration method

5. 9438639 - Network system, access-support server, processing device, and communication agent device

6. 9134942 - Printing system, intermediate server, printing device, job system, method for executing print job, and computer-readable storage medium for computer program

7. 5068148 - Diamond-coated tool member, substrate thereof and method for producing

8. 5066553 - Surface-coated tool member of tungsten carbide based cemented carbide

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as of
12/7/2025
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