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For the Inventor, By the Inventor

Tokyo, Japan

Eko Instruments Co., Ltd.


USPTO Granted Patents = 10


Forward Citations = 13

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15 inventors (with patents filed for the assignee):

goldMedal Toshikazu Hasegawa (10 out of 12 patents)

silverMedal Naoto Shimada (3 out of 21 patents)

bronzeMedal Makoto Tsukamoto (3 out of 5 patents)

4.  Masanori Yabuki (3 out of 3 patents)

5.  Eiji Takeuchi (3 out of 5 patents)

6.  Isamu Chiba (2 out of 16 patents)

7.  Akihito Akiyama (2 out of 2 patents)

8.  Yukihiro Goto (1 out of 11 patents)

9.  Masayuki Yamada (1 out of 148 patents)

10.  Satoshi Nishikawa (1 out of 137 patents)

11.  Takao Kobayashi (1 out of 4 patents)

12.  Kiyotaka Uchida (1 out of 2 patents)

13.  Dengxin Hua (1 out of 1 patent)

14.  Mario Po (1 out of 1 patent)

15.  Kees Hoogendijk (1 out of 1 patent)


10 patents:

1. 12399125 - Optical receiver for meteorological lidar (2025-08-26),
2. 12203806 - Sunshine recorder and sunshine measurement method (2025-01-21),
3. 12140700 - Meteorological lidar (2024-11-12),
4. 11821786 - Pyranometer (2023-11-21),
5. 11650323 - Meteorological lidar (2023-05-16),
6. 11193901 - Thermal conductivity measuring device, thermal conductivity measuring method and vacuum evaluation device (2021-12-07),
7. D855481 - Pyranometer (2019-08-06),
8. 10048122 - Pyranometer (2018-08-14),
9. 9909919 - Pyranometer (2018-03-06),
10. 7227625 - Meteorological observation LIDAR system (2007-06-05),
Company Overview
Eko Instruments Co., Ltd. is a Tokyo-based company specializing in advanced measurement and analysis technologies. The organization focuses on developing high-precision instruments for various applications, including environmental monitoring and industrial measurement. Eko Instruments is recognized for its expertise in acoustic and vibration measurement, contributing to sectors such as construction, manufacturing, and research. With a commitment to innovation, the company aims to enhance measurement accuracy and reliability across diverse industries.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 6 2026

10 Patents

#1,914 in Tokyo

#4,400 in Japan

#55,986 in the World

Tokyo, JP
Tokyo, Japan

Eko Instruments Co., Ltd.

Forward Citations = 13

15 inventors:

goldMedal Toshikazu Hasegawa (10 out of 12 patents)

silverMedal Naoto Shimada (3 out of 21 patents)

bronzeMedal Makoto Tsukamoto (3 out of 5 patents)

4.  Masanori Yabuki (3 out of 3 patents)

5.  Eiji Takeuchi (3 out of 5 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Eko Instruments Co., Ltd.. Retrieved from https://idiyas.com/company/eko-instruments-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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