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For the Inventor, By the Inventor

Tokyo, Japan

Alcan-Tech Co., Inc.


USPTO Granted Patents = 15

Forward Citations = 849

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8 inventors (with patents filed for the assignee):

goldMedal Kazuo Maeda (15 out of 88 patents)

silverMedal Noboru Tokumasu (8 out of 23 patents)

bronzeMedal Kouichi Ohira (7 out of 17 patents)

4.  Yuko Nishimoto (4 out of 7 patents)

5.  Yuhko Nishimoto (3 out of 10 patents)

6.  Mitsuo Hirose (3 out of 3 patents)

7.  Yoshiaki Yuyama (3 out of 5 patents)

8.  Hiroshi Chino (2 out of 3 patents)


15 patents:

1. 5858100 - Substrate holder and reaction apparatus (1999-01-12),
2. 5679165 - Apparatus for manufacturing semiconductor device (1997-10-21),
3. 5620523 - Apparatus for forming film (1997-04-15),
4. 5589001 - Apparatus for forming a film on a wafer (1996-12-31),
5. 5569499 - Method for reforming insulating film (1996-10-29),
6. 5554570 - Method of forming insulating film (1996-09-10),
7. 5532193 - Method for forming insulating film (1996-07-02),
8. 5484749 - Manufacturing method of semiconductor device (1996-01-16),
9. 5387546 - Method for manufacturing a semiconductor device (1995-02-07),
10. 5330577 - Semiconductor fabrication equipment (1994-07-19),
11. 5324539 - Method for forming CVD thin glass films (1994-06-28),
12. 5314538 - Apparatus for manufacturing semiconductor device and method for (1994-05-24),
13. 5302209 - Apparatus for manufacturing semiconductor device (1994-04-12),
14. 5281295 - Semiconductor fabrication equipment (1994-01-25),
15. 5051380 - Process for producing semiconductor device (1991-09-24),
Company Overview
Alcan-Tech Co., Inc. is a Tokyo-based company specializing in advanced materials and innovative technologies. The organization focuses on developing high-performance solutions for various industries, including electronics, automotive, and aerospace. With a commitment to research and development, Alcan-Tech aims to enhance product performance and sustainability through cutting-edge material science and engineering. The company plays a significant role in the advancement of technology in Japan and beyond, contributing to a wide range of applications.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 13 2026

15 Patents

#1,540 in Tokyo

#3,443 in Japan

#39,921 in the World

Tokyo, JP
Tokyo, Japan

Alcan-Tech Co., Inc.

Forward Citations = 849

8 inventors:

goldMedal Kazuo Maeda (15 out of 88 patents)

silverMedal Noboru Tokumasu (8 out of 23 patents)

bronzeMedal Kouichi Ohira (7 out of 17 patents)

4.  Yuko Nishimoto (4 out of 7 patents)

5.  Yuhko Nishimoto (3 out of 10 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Alcan-Tech Co., Inc.. Retrieved from https://idiyas.com/company/alcan-tech-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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