Growing community of inventors

Aichi-ken, Japan

Hiroshi Sumiyama

Average Co-Inventor Count = 4.06

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 = 41

Hiroshi SumiyamaMunetaka Fujita (4 patents)Hiroshi SumiyamaTakeshi Morikawa (3 patents)Hiroshi SumiyamaKazuo Inui (3 patents)Hiroshi SumiyamaHironobu Nakata (3 patents)Hiroshi SumiyamaTatsuji Hirakawa (3 patents)Hiroshi SumiyamaJunko Natsume (2 patents)Hiroshi SumiyamaKoji Naito (2 patents)Hiroshi SumiyamaHiroaki Ikeda (1 patent)Hiroshi SumiyamaEiichi Yoshida (1 patent)Hiroshi SumiyamaTomokazu Kato (1 patent)Hiroshi SumiyamaHideyuki Hashimoto (1 patent)Hiroshi SumiyamaAkinori Yoshida (1 patent)Hiroshi SumiyamaKimie Mishima (1 patent)Hiroshi SumiyamaMotomi Takemoto (1 patent)Hiroshi SumiyamaEiichiro Kawasaki (1 patent)Hiroshi SumiyamaJunko Takuwa (1 patent)Hiroshi SumiyamaMasami Toyama (1 patent)Hiroshi SumiyamaHiroshi Sumiyama (9 patents)Munetaka FujitaMunetaka Fujita (4 patents)Takeshi MorikawaTakeshi Morikawa (72 patents)Kazuo InuiKazuo Inui (32 patents)Hironobu NakataHironobu Nakata (29 patents)Tatsuji HirakawaTatsuji Hirakawa (5 patents)Junko NatsumeJunko Natsume (14 patents)Koji NaitoKoji Naito (12 patents)Hiroaki IkedaHiroaki Ikeda (125 patents)Eiichi YoshidaEiichi Yoshida (74 patents)Tomokazu KatoTomokazu Kato (37 patents)Hideyuki HashimotoHideyuki Hashimoto (28 patents)Akinori YoshidaAkinori Yoshida (13 patents)Kimie MishimaKimie Mishima (11 patents)Motomi TakemotoMotomi Takemoto (10 patents)Eiichiro KawasakiEiichiro Kawasaki (9 patents)Junko TakuwaJunko Takuwa (2 patents)Masami ToyamaMasami Toyama (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Minolta Company, Ltd. (9 from 2,816 patents)


9 patents:

1. 7365869 - Image forming apparatus

2. 7227659 - Print controller and image forming apparatus

3. 7110131 - Image forming system and image forming apparatus for transferring job data when an impaired image forming state is detected

4. 7038812 - Image processing apparatus, image forming apparatus, image processing method, and image forming method that allow forming of an appropriate image with small amount of recording material remaining

5. 6944412 - Job information display apparatus, job execution apparatus, job instruction apparatus and job processing system

6. 6573974 - Image forming apparatus capable of producing high-quality bound documents of any thickness

7. 6415116 - Image forming apparatus, job controlling apparatus, and job controlling method

8. 6249658 - Image forming apparatus capable of independently processing multiple jobs

9. 5995779 - Image forming apparatus for registering a plurality of print jobs in

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as of
12/27/2025
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