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For the Inventor, By the Inventor

Franklin, TN, United States of America

USA Zama, Inc.


USPTO Granted Patents = 19

% Expired Patents = 21.1

Trademarks = 3

Forward Citations = 105

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10 inventors (with patents filed for the assignee):

goldMedal Satoru Araki (8 out of 17 patents)

silverMedal Kimio Koizumi (5 out of 10 patents)

bronzeMedal Yuzuru Yanaka (4 out of 5 patents)

4.  Yasuaki Kohira (4 out of 4 patents)

5.  David R Shebuski (3 out of 10 patents)

6.  Mamoru Toda (2 out of 10 patents)

7.  Scott R Shaw (2 out of 14 patents)

8.  Mark A Hutchinson (1 out of 1 patent)

9.  Jay A Perry (1 out of 1 patent)

10.  Richard L Morris (1 out of 2 patents)


19 patents:

1. 10001086 - Carburetor with throttle shaft retainer (2018-06-19),
2. 9828946 - Carburetor with one piece choke valve and shaft assembly (2017-11-28),
3. 9316176 - Carburetor with one piece choke valve and shaft assembly (2016-04-19),
4. 8695952 - Carburetor with one piece choke valve and shaft assembly (2014-04-15),
5. 6234457 - Method of operating a diaphragm-type carburetor (2001-05-22),
6. 6231033 - Rotary throttle valve type carburetor (2001-05-15),
7. 6142455 - Rotary throttle valve type carburetor (2000-11-07),
8. 6086054 - Diaphragm type carburetor (2000-07-11),
9. 6017199 - Diaphragm carburetor for four cycle engines (2000-01-25),
10. 6000369 - Starting system for diaphragm carburetor (1999-12-14),
11. 5961896 - Carburetor fuel adjusting device (1999-10-05),
12. 5955007 - Carburetor fuel adjusting device (1999-09-21),
13. 5948325 - Air-fuel ratio adjustment device for carburetor (1999-09-07),
14. 5942160 - Rotary throttle valve type carburetor (1999-08-24),
15. 5772927 - Carburetor fuel adjusting device (1998-06-30),
Company Overview
USA Zama, Inc., based in Franklin, TN, specializes in the development and manufacturing of precision-engineered components and systems, primarily for the outdoor power equipment industry. The company focuses on innovative solutions that enhance performance and efficiency, leveraging advanced technologies in its product offerings. With a commitment to quality and sustainability, USA Zama serves a diverse clientele, contributing to the growth of the outdoor equipment sector through its expertise in engineering and manufacturing processes.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 13 2026

19 Patents

#16 in Franklin, TN

#165 in Tennessee

#17,138 in US

#32,663 in the World

Franklin, TN (US)
Franklin, TN, United States of America

USA Zama, Inc.

Forward Citations = 105

10 inventors:

goldMedal Satoru Araki (8 out of 17 patents)

silverMedal Kimio Koizumi (5 out of 10 patents)

bronzeMedal Yuzuru Yanaka (4 out of 5 patents)

4.  Yasuaki Kohira (4 out of 4 patents)

5.  David R Shebuski (3 out of 10 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: USA Zama, Inc.. Retrieved from https://idiyas.com/company/usa-zama

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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