Trademarks = 5

Forward Citations = 31

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8 inventors (with patents filed for the assignee):

Kikuo Yamada (2 out of 63 patents)

Tadashi Ogawa (1 out of 101 patents)

Michiaki Matsumoto (1 out of 2 patents)

4. Eiichi Kamei (1 out of 8 patents)

5. Yasushi Shimomura (1 out of 8 patents)

6. Yasuo Kanda (1 out of 1 patent)

7. Takane Fujinami (1 out of 1 patent)

8. Maiko Hotchi (1 out of 1 patent)

5 patents: Sort by Forward Citations

1. 12291805 - Pulp fibrous accumulated sheet and method for producing pulp fibrous accumulated sheet (2025-05-06),

2. 12060665 - Pulp fibrous accumulated sheet and method for producing pulp fibrous accumulated sheet (2024-08-13),

3. 8785367 - Cleansing sheet (2014-07-22),

4. D707834 - Baby bottle holder (2014-06-24),

5. 5019252 - Portable water purifier (1991-05-28),

Company Overview

LEC, Inc. is a leading engineering and consulting firm specializing in environmental, health, and safety solutions. With over 30 years of experience, LEC provides innovative and sustainable solutions to help clients meet regulatory requirements and improve operational efficiency. Our team of experts offers a comprehensive range of services, including air quality monitoring, environmental compliance auditing, hazardous waste management, and more. Visit our website to learn more about how LEC can help your organization achieve its goals.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

5 Patents

#2,721 in Tokyo

#6,652 in Japan

Tokyo, Japan

Lec, Inc.

Forward Citations = 31

8 inventors:

Kikuo Yamada (2 out of 63 patents)

Tadashi Ogawa (1 out of 101 patents)

Michiaki Matsumoto (1 out of 2 patents)

4. Eiichi Kamei (1 out of 8 patents)

5. Yasushi Shimomura (1 out of 8 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Lec, Inc.. Retrieved from https://idiyas.com/company/lec

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]