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For the Inventor, By the Inventor

Gunma, Japan

Mimasu Semiconductor Industry Co., Ltd.

Calculating rank
USPTO Granted Patents = 10


Forward Citations = 114

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17 inventors (with patents filed for the assignee):

goldMedal Masato Tsuchiya (5 out of 5 patents)

silverMedal Etsuo Kiuchi (3 out of 15 patents)

bronzeMedal Kazuo Hayakawa (3 out of 10 patents)

4.  Hideaki Nagai (2 out of 2 patents)

5.  Masaki Tamura (2 out of 2 patents)

6.  Ikuo Mashimo (2 out of 2 patents)

7.  Hideyuki Murooka (2 out of 2 patents)

8.  Shunichi Ogasawara (2 out of 2 patents)

9.  Kouhei Toyama (2 out of 4 patents)

10.  Osamu Yoshida (1 out of 1 patent)

11.  Syunichi Ogasawara (1 out of 1 patent)

12.  Koichi Saito (1 out of 1 patent)

13.  Shingo Kaburagi (1 out of 4 patents)

14.  Akio Ashida (1 out of 4 patents)

15.  Kohei Toyama (1 out of 15 patents)


10 patents:

1. 11056362 - Wafer heating and holding mechanism and method for rotary table, and wafer rotating and holding device (2021-07-06),
2. 10818538 - Wafer holding mechanism for rotary table and method and wafer rotating and holding device (2020-10-27),
3. 10679862 - Contactless electric power supply mechanism and method for rotary table, and wafer rotating and holding device (2020-06-09),
4. 7659212 - Process control method in spin etching and spin etching apparatus (2010-02-09),
5. 7364616 - Wafer demounting method, wafer demounting device, and wafer demounting and transferring machine (2008-04-29),
6. 6810888 - Wafer rotary holding apparatus and wafer surface treatment apparatus with waste liquid recovery mechanism (2004-11-02),
7. 6672318 - Wafer rotary holding apparatus and wafer surface treatment apparatus with waste liquid recovery mechanism (2004-01-06),
8. 6001265 - Recovery of coolant and abrasive grains used in slicing semiconductor (1999-12-14),
9. 5839425 - Method for cutting a workpiece with a wire saw (1998-11-24),
10. 5715807 - Wire saw (1998-02-10),
Company Overview
Mimasu Semiconductor Industry Co., Ltd. is a prominent player in the semiconductor sector, specializing in the development and manufacturing of high-quality semiconductor components. The company focuses on innovative technologies that cater to various applications, including automotive, consumer electronics, and industrial equipment. With its headquarters in Gunma, Japan, Mimasu is committed to advancing semiconductor technology and enhancing performance across multiple industries, contributing to the evolution of modern electronic devices.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 27 2026

10 Patents

#19 in Gunma

#4,406 in Japan

#56,119 in the World

Gunma, JP
Gunma, Japan

Mimasu Semiconductor Industry Co., Ltd.

Forward Citations = 114

17 inventors:

goldMedal Masato Tsuchiya (5 out of 5 patents)

silverMedal Etsuo Kiuchi (3 out of 15 patents)

bronzeMedal Kazuo Hayakawa (3 out of 10 patents)

4.  Hideaki Nagai (2 out of 2 patents)

5.  Masaki Tamura (2 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Mimasu Semiconductor Industry Co., Ltd.. Retrieved from https://idiyas.com/company/mimasu-semiconductor-industry-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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