Growing community of inventors

Tokyo, Japan

Keiichi Murasaki

Average Co-Inventor Count = 1.17

ph-index = 5

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 = 126

Keiichi MurasakiHiroshi Okawa (1 patent)Keiichi MurasakiTatsuya Matsuzaki (1 patent)Keiichi MurasakiKeiichi Murasaki (7 patents)Hiroshi OkawaHiroshi Okawa (6 patents)Tatsuya MatsuzakiTatsuya Matsuzaki (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Tomy Kogyo Co., Ltd. (4 from 376 patents)

2. Toybox Corporation (2 from 23 patents)

3. Sega Enterprises, Ltd. (1 from 264 patents)

4. I-magic, Inc. (1 from 6 patents)


7 patents:

1. 6253058 - Interactive toy

2. D400935 - Game toy

3. 4959035 - Miniature storage container for a manually propelled toy member

4. D293347 - Toy robot

5. D262392 - Toy simulated octopus

6. D258302 - Simulative toy vehicle

7. D258224 - Toy vehicle

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as of
1/3/2026
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