Growing community of inventors

Nabari, Japan

Kazumi Hirai

Average Co-Inventor Count = 2.30

ph-index = 7

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 = 136

Kazumi HiraiMitsuo Akiyoshi (5 patents)Kazumi HiraiYoshio Mitsumoto (3 patents)Kazumi HiraiIchiroh Hori (3 patents)Kazumi HiraiKenji Watanabe (2 patents)Kazumi HiraiChikao Nakano (2 patents)Kazumi HiraiSatoru Kodama (2 patents)Kazumi HiraiShigeki Ueda (1 patent)Kazumi HiraiKimiaki Yamaguchi (1 patent)Kazumi HiraiSatomi Uchiyama (1 patent)Kazumi HiraiIkuhiro Inada (1 patent)Kazumi HiraiFumiko Mori (1 patent)Kazumi HiraiYoshitomo Fujitani (1 patent)Kazumi HiraiKazumi Hirai (10 patents)Mitsuo AkiyoshiMitsuo Akiyoshi (11 patents)Yoshio MitsumotoYoshio Mitsumoto (5 patents)Ichiroh HoriIchiroh Hori (3 patents)Kenji WatanabeKenji Watanabe (44 patents)Chikao NakanoChikao Nakano (6 patents)Satoru KodamaSatoru Kodama (5 patents)Shigeki UedaShigeki Ueda (36 patents)Kimiaki YamaguchiKimiaki Yamaguchi (12 patents)Satomi UchiyamaSatomi Uchiyama (9 patents)Ikuhiro InadaIkuhiro Inada (7 patents)Fumiko MoriFumiko Mori (6 patents)Yoshitomo FujitaniYoshitomo Fujitani (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Matsushita Electric Industrial Co., Ltd. (9 from 27,375 patents)

2. Matsushita Electrical Industrial Co., Ltd. (1 from 115 patents)


10 patents:

1. 6133558 - Microwave steam heater with microwave and steam generators controlled to

2. 4880952 - Heat cooking oven having flat heater units on the outside of the walls

3. 4745246 - High frequency heating apparatus with electric heating device

4. 4675510 - Cooking appliance with self-contained weighing system

5. 4675507 - Heat cooking apparatus having a flat flexible heater

6. 4673800 - Cooking apparatus with weighing device

7. 4595827 - Cooking apparatus with weighing device

8. 3965325 - Microwave oven

9. 3943319 - Microwave oven with hinged door and latch means

10. 3943318 - Microwave oven with triangular observation window

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idiyas.com
as of
1/7/2026
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