% Expired Patents = 25.0

CIPO Patents = 1

EPO Patents = 4

Forward Citations = 24

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6 inventors (with patents filed for the assignee):

Hirofumi Tamai (5 out of 7 patents)

Katsuya Kanaoka (3 out of 9 patents)

Satoshi Tamai (2 out of 13 patents)

4. Ryo Kikuuwe (1 out of 1 patent)

5. Yuki Okabe (1 out of 1 patent)

6. Hiroshi Oku (1 out of 1 patent)

8 patents: Sort by Forward Citations

1. 12498390 - Pipette device and analysis device (2025-12-16),

2. 10272006 - Care method and care robot used therein (2019-04-30),

3. 10239201 - Master-slave system (2019-03-26),

4. 10045898 - Robot (2018-08-14),

5. 9855653 - Master-slave system (2018-01-02),

6. 8544853 - Two-legged walking transportation device (2013-10-01),

7. 7109610 - Integrated wireless linear motor (2006-09-19),

8. 6840185 - Method and system for preventing thread breakage (2005-01-11),

Company Overview

Muscle Corporation is a leading fitness equipment manufacturer specializing in high-quality workout gear for bodybuilders and fitness enthusiasts. With a focus on durability and performance, our products are designed to help our customers achieve their fitness goals. From dumbbells to weight benches, Muscle Corporation has everything you need to build strength and improve your physique.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

8 Patents

#543 in Osaka

#5,049 in Japan

Osaka, Japan

Muscle Corporation

Forward Citations = 24

6 inventors:

Hirofumi Tamai (5 out of 7 patents)

Katsuya Kanaoka (3 out of 9 patents)

Satoshi Tamai (2 out of 13 patents)

4. Ryo Kikuuwe (1 out of 1 patent)

5. Yuki Okabe (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Muscle Corporation. Retrieved from https://idiyas.com/company/muscle

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]

1 patent (CIPO):

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]

4 patents (EPO):

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]