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For the Inventor, By the Inventor

Amagasaki, Japan

Sumitomo Sitix Corporation


USPTO Granted Patents = 40


Forward Citations = 288

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41 inventors (with patents filed for the assignee):

goldMedal Makoto Ito (7 out of 13 patents)

silverMedal Setsuo Okamoto (7 out of 8 patents)

bronzeMedal Kaoru Kuramochi (6 out of 9 patents)

4.  Teruo Izumi (5 out of 26 patents)

5.  Yoshihiro Akashi (5 out of 6 patents)

6.  Souroku Kawanishi (4 out of 5 patents)

7.  Shigeyuki Kimura (3 out of 12 patents)

8.  Hitoshi Sasaki (3 out of 6 patents)

9.  Koji Izunome (3 out of 4 patents)

10.  Shinji Togawa (3 out of 3 patents)

11.  Atsushi Ikari (3 out of 7 patents)

12.  Masataka Hourai (2 out of 30 patents)

13.  Yukihiro Hyobu (2 out of 17 patents)

14.  Takayuki Kubo (2 out of 14 patents)

15.  Eiji Kajita (2 out of 2 patents)


Core Competencies:
Single Crystal
Silicon Wafer
Crystal Growth
Seed Crystals
Annealing
Silicon Melting Crucible
Semiconductor Substrates
High Purity Titanium
Eddy Flows
Impurity Distribution
Cleaning Equipment
Production Methods

40 patents:

1. 6583810 - Method and apparatus for measuring a diameter of a single crystal (2003-06-24),
2. 6267816 - Method for single crystal growth (2001-07-31),
3. 6245430 - Silicon single crystal wafer and manufacturing method for it (2001-06-12),
4. 6139632 - Seed crystals, seed crystal holders, and a method for pulling a single (2000-10-31),
5. 6110272 - Method for producing silicon single crystal (2000-08-29),
6. 6099641 - Apparatus for pulling a single crystal (2000-08-08),
7. 6093259 - Color development method of metallic titanium and black and colored (2000-07-25),
8. 6086671 - Method for growing a silicon single crystal (2000-07-11),
9. 6086670 - Silicon wafer and method for producing the same (2000-07-11),
10. 6080238 - Single crystal pulling method (2000-06-27),
11. 6032817 - Easily attachable/detachable lid mounted container (2000-03-07),
12. 6015461 - Seed crystal holders, for pulling a single crystal (2000-01-18),
13. 5989341 - Single crystal producing apparatus and a single crystal producing method (1999-11-23),
14. 5979474 - Cleaning equipment for semiconductor substrates (1999-11-09),
15. 5961715 - Method for pulling a single crystal (1999-10-05),
Company Overview
Sumitomo Sitix Corporation, based in Amagasaki, Japan, specializes in advanced semiconductor materials and technologies. The company is renowned for its expertise in single crystal growth and silicon wafer manufacturing, which are critical for the semiconductor industry. Their innovations extend to seed crystal technology and high-purity titanium production, ensuring high-quality substrates for various applications. Additionally, Sumitomo Sitix is involved in semiconductor substrate cleaning and the development of specialized equipment like single crystal pulling apparatus, contributing significantly to the advancement of semiconductor manufacturing processes.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

40 Patents

#3 in Amagasaki

#1,980 in Japan

#17,087 in the World

Amagasaki, JP
Amagasaki, Japan

Sumitomo Sitix Corporation

Forward Citations = 288

41 inventors:

goldMedal Makoto Ito (7 out of 13 patents)

silverMedal Setsuo Okamoto (7 out of 8 patents)

bronzeMedal Kaoru Kuramochi (6 out of 9 patents)

4.  Teruo Izumi (5 out of 26 patents)

5.  Yoshihiro Akashi (5 out of 6 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Sumitomo Sitix Corporation. Retrieved from https://idiyas.com/company/sumitomo-sitix

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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