Growing community of inventors

Tokyo, Japan

Tsutomu Okawa

Average Co-Inventor Count = 1.64

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 = 23

Tsutomu OkawaHirokazu Tsuji (1 patent)Tsutomu OkawaDouglas N Laube (1 patent)Tsutomu OkawaDavid A Shambley (1 patent)Tsutomu OkawaTsutomu Okawa (3 patents)Hirokazu TsujiHirokazu Tsuji (13 patents)Douglas N LaubeDouglas N Laube (5 patents)David A ShambleyDavid A Shambley (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Nec Corporation (2 from 35,756 patents)

2. Nec America, Inc. (1 from 50 patents)


3 patents:

1. 6832105 - Portable cellular phone, method and program for displaying image data in portable cellular phone and storage medium storing same program

2. 6351655 - Method of handling registration data and telephone apparatus for the same

3. D325909 - Combined mobile cellular telephone handset and transporter

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as of
1/10/2026
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