Growing community of inventors

Osaka, Japan

Matafumi Ikeda

Average Co-Inventor Count = 1.80

ph-index = 11

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 = 281

Matafumi IkedaShigetoshi Hazama (7 patents)Matafumi IkedaShuzo Sawa (6 patents)Matafumi IkedaChikashi Kuriya (4 patents)Matafumi IkedaAkira Esaki (4 patents)Matafumi IkedaMika Nakajima (3 patents)Matafumi IkedaMasafumi Yamagami (2 patents)Matafumi IkedaIsao Kitai (2 patents)Matafumi IkedaYoshiaki Kobayashi (2 patents)Matafumi IkedaYoshihisa Ohie (1 patent)Matafumi IkedaTsutomu Yamasaki (1 patent)Matafumi IkedaTsutomu Yamazaki (1 patent)Matafumi IkedaMatafumi Ikeda (24 patents)Shigetoshi HazamaShigetoshi Hazama (12 patents)Shuzo SawaShuzo Sawa (9 patents)Chikashi KuriyaChikashi Kuriya (16 patents)Akira EsakiAkira Esaki (6 patents)Mika NakajimaMika Nakajima (4 patents)Masafumi YamagamiMasafumi Yamagami (34 patents)Isao KitaiIsao Kitai (17 patents)Yoshiaki KobayashiYoshiaki Kobayashi (15 patents)Yoshihisa OhieYoshihisa Ohie (23 patents)Tsutomu YamasakiTsutomu Yamasaki (15 patents)Tsutomu YamazakiTsutomu Yamazaki (4 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Sharp Corporation (13 from 847 patents)

2. Sharp Kabushiki Kaisha Corporation (9 from 25,543 patents)

3. Sharp Kabushiki Kaisha (sharp Corporation) (2 from 9 patents)


24 patents:

1. D325273 - Vacuum cleaner

2. D325274 - Vacuum cleaner

3. D315431 - Vacuum cleaner

4. D315042 - Vacuum cleaner

5. D307658 - Vacuum cleaner

6. D302876 - Vacuum cleaner

7. D296358 - Oil heater

8. D295554 - Oil heater

9. D277600 - Oil heater

10. D276363 - Oil heater

11. D276365 - Oil heater

12. D276366 - Oil heater

13. D260904 - Combined electronic calculating machine and timepiece

14. D258891 - Electronic calculating machine

15. D257045 - Electronic calculating machine

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as of
12/18/2025
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