Growing community of inventors

Osaka, Japan

Yuji Koyama

Average Co-Inventor Count = 2.09

ph-index = 2

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 = 35

Yuji KoyamaShigeru Tamai (7 patents)Yuji KoyamaMinoru Miyauchi (1 patent)Yuji KoyamaYasushi Matsuda (1 patent)Yuji KoyamaYuji Koyama (8 patents)Shigeru TamaiShigeru Tamai (24 patents)Minoru MiyauchiMinoru Miyauchi (6 patents)Yasushi MatsudaYasushi Matsuda (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Seed Company Limited (7 from 34 patents)

2. Es Fibervisions Co., Ltd. (1 from 14 patents)

3. Es Fibervisions Hong Kong Limited (1 from 14 patents)

4. Es Fibervisions LP (1 from 14 patents)

5. Es Fibervisions Aps (1 from 13 patents)


8 patents:

1. 9556539 - Shrinkable fiber for porous molded body

2. 9127404 - Used paper recycling apparatus and its constituent devices

3. 8449722 - Used paper recycling apparatus and its constitutent devices

4. 8343314 - Pulp feeder for used paper recycling apparatus

5. 8313616 - Used paper recycling apparatus and its constituent devices

6. 8273217 - Paper machine for used paper recycling apparatus

7. 8262863 - Paper machine for used paper recycling apparatus

8. 8025770 - Used paper processing apparatus

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idiyas.com
as of
12/11/2025
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