Growing community of inventors

Nagasaki, Japan

Keisuke Umakoshi

Average Co-Inventor Count = 5.22

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 = 2

Keisuke UmakoshiNoboru Kitamura (4 patents)Keisuke UmakoshiShoji Ishizaka (4 patents)Keisuke UmakoshiMasayoshi Onishi (3 patents)Keisuke UmakoshiKazutoyo Kimura (2 patents)Keisuke UmakoshiSatoshi Mikami (1 patent)Keisuke UmakoshiAmi Higashitani (1 patent)Keisuke UmakoshiKeizo Saito (1 patent)Keisuke UmakoshiSeiji Akatsu (1 patent)Keisuke UmakoshiKeisuke Umakoshi (4 patents)Noboru KitamuraNoboru Kitamura (6 patents)Shoji IshizakaShoji Ishizaka (4 patents)Masayoshi OnishiMasayoshi Onishi (3 patents)Kazutoyo KimuraKazutoyo Kimura (2 patents)Satoshi MikamiSatoshi Mikami (10 patents)Ami HigashitaniAmi Higashitani (1 patent)Keizo SaitoKeizo Saito (1 patent)Seiji AkatsuSeiji Akatsu (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Nagasaki University (4 from 60 patents)

2. Sumitomo Chemical Company, Limited (1 from 6,892 patents)


4 patents:

1. 8765952 - Metal complex, light emitting element, and display device

2. 8124784 - Palladium metal complex

3. 7973167 - Metal complex, light-emitting device and display

4. 7893611 - Metal complex, light-emitting device and display

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as of
12/7/2025
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