Growing community of inventors

Tokyo, Japan

Kenji Ekuan

Average Co-Inventor Count = 1.07

ph-index = 9

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 = 210

Kenji EkuanHitoshi Igarashi (1 patent)Kenji EkuanToshiyuki Suzuki (1 patent)Kenji EkuanKenji Ekuan (16 patents)Hitoshi IgarashiHitoshi Igarashi (86 patents)Toshiyuki SuzukiToshiyuki Suzuki (7 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Yamaha Hatsudoki Kabushiki Kaisha (4 from 4,233 patents)

2. Nippon Gakki Seizo Kabushiki Kaisha (3 from 841 patents)

3. Epson Corporation (2 from 80 patents)

4. C.i. Kasei Company, Limited (2 from 25 patents)

5. Asahi Glass Company, Limited (1 from 2,560 patents)

6. Kikkoman Corporation (1 from 235 patents)

7. Kikkoman Shoyu Co., Ltd. (1 from 22 patents)

8. Yamagiwa Electric Co. Ltd. (1 from 4 patents)

9. Alfa & Associates, Inc. (1 from 1 patent)


16 patents:

1. D334711 - Combined bottle and cap

2. D282844 - Personal computer

3. D282410 - Box for holding record discs

4. D281322 - Electronic printer

5. 4546898 - Box

6. D275946 - Electric generator

7. D272063 - Digital audio discs player

8. D270531 - Decoder for a digital audio discs player

9. D268028 - Record player

10. 4365713 - Cassette tape case magazine

11. D255558 - Golf car

12. D254366 - Motortricycle

13. D251870 - Adjustable lamp

14. D248450 - Bottle

15. 4086857 - Sectional assembly

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as of
12/11/2025
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