Growing community of inventors

Tokyo, Japan

Masaaki Haga

Average Co-Inventor Count = 1.25

ph-index = 10

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 = 276

Masaaki HagaHideaki Tsuji (4 patents)Masaaki HagaTadayuki Kirigaya (3 patents)Masaaki HagaKoji Sato (2 patents)Masaaki HagaIsamu Hirai (2 patents)Masaaki HagaMasato Yamamoto (2 patents)Masaaki HagaAkio Takahashi (2 patents)Masaaki HagaMasashi Furuno (2 patents)Masaaki HagaHidefumi Kaneko (2 patents)Masaaki HagaYasuyuki Haneishi (2 patents)Masaaki HagaKatsuki Machida (2 patents)Masaaki HagaMikio Ogi (1 patent)Masaaki HagaMasaaki Haga (24 patents)Hideaki TsujiHideaki Tsuji (12 patents)Tadayuki KirigayaTadayuki Kirigaya (19 patents)Koji SatoKoji Sato (82 patents)Isamu HiraiIsamu Hirai (54 patents)Masato YamamotoMasato Yamamoto (28 patents)Akio TakahashiAkio Takahashi (28 patents)Masashi FurunoMasashi Furuno (24 patents)Hidefumi KanekoHidefumi Kaneko (17 patents)Yasuyuki HaneishiYasuyuki Haneishi (10 patents)Katsuki MachidaKatsuki Machida (7 patents)Mikio OgiMikio Ogi (6 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Asahi Kogaku Kogyo Kabushiki Kaisha (12 from 3,132 patents)

2. Pentax Corporation (10 from 1,056 patents)

3. Asahi Kogaku Kogyo K.k. (2 from 176 patents)


24 patents:

1. D574026 - Convertible lens for single-lens reflex camera

2. D542825 - Digital single-lens reflex camera

3. D542824 - Digital single-lens reflex camera

4. D542823 - Digital single-lens reflex camera

5. D524346 - Digital camera

6. D524351 - Digital camera

7. D503185 - Battery grip for single-lens reflex camera

8. D491596 - Digital camera

9. D491593 - Digital camera

10. D491597 - Digital camera

11. 6427052 - Exposure-condition setting device for camera

12. D451940 - Single-lens reflex camera body

13. D449327 - Single-lens reflex digital camera body

14. D413346 - Single-lens reflex camera body

15. 5774746 - Camera with learning function

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