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For the Inventor, By the Inventor

Osaka, Japan

Ferro Enamels (Japan) Limited

Calculating rank
USPTO Granted Patents = 6

% Expired Patents = 16.7

Forward Citations = 13

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18 inventors (with patents filed for the assignee):

goldMedal Yasumasa Asanaka (3 out of 3 patents)

silverMedal Shuhei Yamoto (2 out of 7 patents)

bronzeMedal Koji Kataoka (2 out of 2 patents)

4.  Masanori Ohiwa (2 out of 7 patents)

5.  Tohru Nakatsuka (2 out of 3 patents)

6.  Hiroshi Takeuchi (2 out of 2 patents)

7.  Fumiaki Sato (1 out of 46 patents)

8.  Takayuki Suzuki (1 out of 4 patents)

9.  Shigeru Suzuki (1 out of 7 patents)

10.  Toshihira Hamada (1 out of 2 patents)

11.  Shuzo Oda (1 out of 2 patents)

12.  Yoshihiro Jono (1 out of 2 patents)

13.  Takahiro Hayashida (1 out of 2 patents)

14.  Junichi Fujimoto (1 out of 4 patents)

15.  Masao Komai (1 out of 10 patents)


6 patents:

1. 6905783 - Steel sheet for porcelain enameling and method for production thereof, and enameled product and method for production thereof (2005-06-14),
2. 6540824 - Titanium-iron based composite oxide pigment and method for production thereof (2003-04-01),
3. 5972097 - Method of manufacturing inorganic pigment (1999-10-26),
4. 5494974 - Reactive particulate resin and method for its production (1996-02-27),
5. 5459179 - Reactive particulate resin, method for producing the same, and resin (1995-10-17),
6. 4613628 - Resin composition for closed-cell foam and cured resin foam prepared by (1986-09-23),
Company Overview
Ferro Enamels (Japan) Limited is a leading manufacturer of high-quality enamel products. With a strong focus on innovation and quality, the company has been catering to various industries such as automotive, electronics, and industrial applications. Their advanced technology and expertise in enameling processes have made them a trusted name in the industry.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

6 Patents

#651 in Osaka

#5,990 in Japan

Osaka, JP
Osaka, Japan

Ferro Enamels (Japan) Limited

Forward Citations = 13

18 inventors:

goldMedal Yasumasa Asanaka (3 out of 3 patents)

silverMedal Shuhei Yamoto (2 out of 7 patents)

bronzeMedal Koji Kataoka (2 out of 2 patents)

4.  Masanori Ohiwa (2 out of 7 patents)

5.  Tohru Nakatsuka (2 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Ferro Enamels (Japan) Limited. Retrieved from https://idiyas.com/company/ferro-enamels-japan

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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