% Expired Patents = 12.5

Trademarks = 1

Forward Citations = 6

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10 inventors (with patents filed for the assignee):

Keiichi Takanashi (6 out of 34 patents)

Benno Orschel (6 out of 8 patents)

Joel Kearns (4 out of 4 patents)

4. Volker Todt (4 out of 4 patents)

5. Andrzej Buczkowski (2 out of 7 patents)

6. Cindy Kohanek (1 out of 1 patent)

7. Gary Babb (1 out of 1 patent)

8. Christopher A Panczyk (1 out of 1 patent)

9. Jonathan M Madsen (1 out of 1 patent)

10. Walter Huber (1 out of 3 patents)

8 patents: Sort by Forward Citations

1. 8673075 - Procedure for in-situ determination of thermal gradients at the crystal growth front (2014-03-18),

2. 8641822 - Method and apparatus for controlling diameter of a silicon crystal ingot in a growth process (2014-02-04),

3. 8545623 - Method and apparatus for controlling the growth process of a monocrystalline silicon ingot (2013-10-01),

4. 8496765 - Method for correcting speed deviations between actual and nominal pull speed during crystal growth (2013-07-30),

5. 8221545 - Procedure for in-situ determination of thermal gradients at the crystal growth front (2012-07-17),

6. 8012255 - Method and apparatus for controlling diameter of a silicon crystal ingot in a growth process (2011-09-06),

7. 7905030 - Linearity measuring apparatus for wafer orientation flat (2011-03-15),

8. 6511921 - Methods for reducing the reactivity of a semiconductor substrate surface and for evaluating electrical properties of a semiconductor substrate (2003-01-28),

Company Overview

Sumco Phoenix Corporation is a leading provider of high-quality semiconductor silicon wafers. Our advanced technology and state-of-the-art facilities enable us to deliver top-notch products to clients worldwide. With a strong commitment to innovation and customer satisfaction, Sumco Phoenix Corporation is a trusted partner in the semiconductor industry.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

8 Patents

#118 in Phoenix, AZ

#466 in Arizona

#35,941 in US

Phoenix, AZ, United States of America

Sumco Phoenix Corporation

Forward Citations = 6

10 inventors:

Keiichi Takanashi (6 out of 34 patents)

Benno Orschel (6 out of 8 patents)

Joel Kearns (4 out of 4 patents)

4. Volker Todt (4 out of 4 patents)

5. Andrzej Buczkowski (2 out of 7 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Sumco Phoenix Corporation. Retrieved from https://idiyas.com/company/sumco-phoenix

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]