Growing community of inventors

Kitakyushu, Japan

Kiyoji Kuma

Average Co-Inventor Count = 3.04

ph-index = 4

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 = 36

Kiyoji KumaShin-ichi Sato (5 patents)Kiyoji KumaMasaaki Miyamoto (4 patents)Kiyoji KumaYasuharu Mori (2 patents)Kiyoji KumaYoshitaka Shiraishi (2 patents)Kiyoji KumaMotonori Ueda (2 patents)Kiyoji KumaTakahiro Oshida (2 patents)Kiyoji KumaRyuji Uchimura (2 patents)Kiyoji KumaTakashi Ono (2 patents)Kiyoji KumaEiji Fujimoto (2 patents)Kiyoji KumaAtsuo Takeuchi (2 patents)Kiyoji KumaYoshiaki Izumisawa (1 patent)Kiyoji KumaTakao Tayama (1 patent)Kiyoji KumaAkio Tamaru (1 patent)Kiyoji KumaToshimitsu Inoue (1 patent)Kiyoji KumaYuuichi Nishida (1 patent)Kiyoji KumaNarutoshi Hyoudou (1 patent)Kiyoji KumaHidekichi Hashimoto (1 patent)Kiyoji KumaToshimitu Inoue (1 patent)Kiyoji KumaTakashi Komaya (1 patent)Kiyoji KumaMasanobu Minagawa (1 patent)Kiyoji KumaKiyoji Kuma (11 patents)Shin-ichi SatoShin-ichi Sato (10 patents)Masaaki MiyamotoMasaaki Miyamoto (30 patents)Yasuharu MoriYasuharu Mori (13 patents)Yoshitaka ShiraishiYoshitaka Shiraishi (5 patents)Motonori UedaMotonori Ueda (5 patents)Takahiro OshidaTakahiro Oshida (3 patents)Ryuji UchimuraRyuji Uchimura (3 patents)Takashi OnoTakashi Ono (2 patents)Eiji FujimotoEiji Fujimoto (2 patents)Atsuo TakeuchiAtsuo Takeuchi (2 patents)Yoshiaki IzumisawaYoshiaki Izumisawa (9 patents)Takao TayamaTakao Tayama (8 patents)Akio TamaruAkio Tamaru (6 patents)Toshimitsu InoueToshimitsu Inoue (3 patents)Yuuichi NishidaYuuichi Nishida (3 patents)Narutoshi HyoudouNarutoshi Hyoudou (2 patents)Hidekichi HashimotoHidekichi Hashimoto (2 patents)Toshimitu InoueToshimitu Inoue (1 patent)Takashi KomayaTakashi Komaya (1 patent)Masanobu MinagawaMasanobu Minagawa (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Mitsubishi Chemical Corporation (8 from 2,346 patents)

2. Mitsubishi Kasei Corporation (2 from 499 patents)

3. Mitsubishi Chemical Industries Limited (1 from 614 patents)


11 patents:

1. 7511114 - Colored aromatic polycarbonate resin composition, process for producing the same and colored hollow container

2. 6750314 - Process for producing an aromatic polycarbonate

3. 6602940 - Process for the preparation of aqueous solution or dispersion containing cationic polymer

4. 6294641 - Polycarbonate resin, optical-information recording medium substrate made of the same, and optical-information recording medium

5. 6288205 - Polycarbonate resin, optical information recording medium substrate comprising the same, and optical information recording medium

6. 5962570 - Process for the preparation of aqueous solution or dispersion containing

7. 5840976 - Method of stabilizing N-vinylamides

8. 5574185 - Production of N-(.alpha.-alkoxyethyl) formamide

9. 5464908 - Process for preparing water-soluble polymers

10. 4929756 - Process for preparing oximes

11. 4599465 - Process for producing orthoalkylphenols

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12/7/2025
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