Growing community of inventors

Tokyo, Japan

Takahiro Kumagai

Average Co-Inventor Count = 2.93

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

Takahiro KumagaiKazuhiro Noda (3 patents)Takahiro KumagaiTakenori Okusa (2 patents)Takahiro KumagaiYuichi Iwase (2 patents)Takahiro KumagaiTakushi Miyakawa (2 patents)Takahiro KumagaiYukinori Sakashita (1 patent)Takahiro KumagaiTetsuji Kawahara (1 patent)Takahiro KumagaiTatsuya Fukugaki (1 patent)Takahiro KumagaiSusumu Sakairi (1 patent)Takahiro KumagaiMasafumi Miyake (1 patent)Takahiro KumagaiRyota Watanabe (1 patent)Takahiro KumagaiHaruyoshi Yamamoto (1 patent)Takahiro KumagaiNobuya Fukuda (1 patent)Takahiro KumagaiTakunori Arahari (1 patent)Takahiro KumagaiTakahiro Kumagai (8 patents)Kazuhiro NodaKazuhiro Noda (60 patents)Takenori OkusaTakenori Okusa (48 patents)Yuichi IwaseYuichi Iwase (41 patents)Takushi MiyakawaTakushi Miyakawa (11 patents)Yukinori SakashitaYukinori Sakashita (55 patents)Tetsuji KawaharaTetsuji Kawahara (26 patents)Tatsuya FukugakiTatsuya Fukugaki (24 patents)Susumu SakairiSusumu Sakairi (15 patents)Masafumi MiyakeMasafumi Miyake (11 patents)Ryota WatanabeRyota Watanabe (10 patents)Haruyoshi YamamotoHaruyoshi Yamamoto (8 patents)Nobuya FukudaNobuya Fukuda (2 patents)Takunori ArahariTakunori Arahari (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Hitachi High-Tech Corporation (7 from 1,146 patents)

2. Square Enix Co., Ltd. (1 from 134 patents)


8 patents:

1. 12478930 - Electrolyte analysis apparatus

2. 12385935 - Electrolyte analyzer

3. 12044692 - Automatic analyzer

4. 11933804 - Automatic analyzer

5. 11885824 - Automatic analyzer

6. 11474119 - Automatic analysis device

7. 11041872 - Automatic analysis device

8. 10118098 - Program product and system

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1/8/2026
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