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For the Inventor, By the Inventor

Tokyo, Japan

Nippon Felt Co., Ltd.

Calculating rank
USPTO Granted Patents = 8

Forward Citations = 38

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15 inventors (with patents filed for the assignee):

goldMedal Fumio Murakami (2 out of 2 patents)

silverMedal Tokuji Iwasaki (2 out of 2 patents)

bronzeMedal Mikio Kato (2 out of 2 patents)

4.  Yasushi Suzuki (1 out of 8 patents)

5.  Sadaaki Okazaki (1 out of 1 patent)

6.  Takayoshi Aoyagi (1 out of 1 patent)

7.  Tetsuya Konno (1 out of 1 patent)

8.  Hiroshi Taguchi (1 out of 3 patents)

9.  Junichi Kaneko (1 out of 1 patent)

10.  Masayuki Ito (1 out of 1 patent)

11.  Eiichi Morita (1 out of 5 patents)

12.  Kouha Fujimoto (1 out of 1 patent)

13.  Takao Shimizu (1 out of 1 patent)

14.  Hiroyuki Okubo (1 out of 1 patent)

15.  Takeo Tanabe (1 out of 1 patent)


8 patents:

1. 5544677 - Robotic apparatus for automatic cop changing for a weaving machine (1996-08-13),
2. 5349728 - Magnetic position marker and control system for production of felt (1994-09-27),
3. 5306552 - Magnetic position marker (1994-04-26),
4. 5194121 - Needled felt for papermaking use (1993-03-16),
5. 5016677 - Automatic cop changing device for a weaving machine (1991-05-21),
6. 4564985 - Felt for paper manufacture and method for producing the same (1986-01-21),
7. 4030149 - Bed for the invalid (1977-06-21),
8. 4007501 - Bed having a bed pan (1977-02-15),
Company Overview
Nippon Felt Co., Ltd. is a leading manufacturer of industrial felt products in Japan. With over 50 years of experience, the company specializes in producing high-quality wool and synthetic felt for a variety of applications, including automobile, construction, and consumer goods. Nippon Felt is committed to providing innovative solutions and exceptional service to meet the needs of its customers worldwide.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 27 2026

8 Patents

#2,152 in Tokyo

#5,050 in Japan

Tokyo, JP
Tokyo, Japan

Nippon Felt Co., Ltd.

Forward Citations = 38

15 inventors:

goldMedal Fumio Murakami (2 out of 2 patents)

silverMedal Tokuji Iwasaki (2 out of 2 patents)

bronzeMedal Mikio Kato (2 out of 2 patents)

4.  Yasushi Suzuki (1 out of 8 patents)

5.  Sadaaki Okazaki (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Nippon Felt Co., Ltd.. Retrieved from https://idiyas.com/company/nippon-felt-company

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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