Growing community of inventors

Tokyo, Japan

Kazuhisa Osaka

Average Co-Inventor Count = 6.00

ph-index = 1

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 = 4

Kazuhisa Osaka ↔ Shinya Morita (1 patent)Kazuhisa Osaka ↔ Masayoshi Minami (1 patent)Kazuhisa Osaka ↔ Hiromi Okada (1 patent)Kazuhisa Osaka ↔ Satoshi Aizawa (1 patent)Kazuhisa Osaka ↔ Masayuki Yamada (1 patent)Kazuhisa OsakaKazuhisa Osaka (1 patent)Shinya MoritaShinya Morita (72 patents)Masayoshi MinamiMasayoshi Minami (20 patents)Hiromi OkadaHiromi Okada (6 patents)Satoshi AizawaSatoshi Aizawa (6 patents)Masayuki YamadaMasayuki Yamada (4 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Hitachi-Kokusai Electric Inc. (1 from 1,258 patents)

2. Techno Quartz Inc. (1 from 3 patents)


1 patent:

1. D789311 - Pattern wafer

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as of
1/9/2026
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