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Japan Super Quartz Corporation

USPTO Granted Patents = 65

EPO Patents = 62

Trademarks = 6

Forward Citations = 72

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36 inventors (with patents filed for the assignee):

Hiroshi Kishi (18 out of 39 patents)

Masaki Morikawa (16 out of 16 patents)

Masanori Fukui (14 out of 23 patents)

4. Toshiaki Sudo (14 out of 48 patents)

5. Minoru Kanda (11 out of 12 patents)

6. Takeshi Fujita (8 out of 13 patents)

7. Yoshiyuki Tsuji (8 out of 10 patents)

8. Eriko Suzuki (7 out of 13 patents)

9. Takuma Yoshioka (6 out of 12 patents)

10. Toshio Tsujimoto (5 out of 5 patents)

11. Satoshi Kudo (4 out of 12 patents)

12. Masaru Sato (4 out of 6 patents)

13. Tadahiro Sato (3 out of 19 patents)

14. Atsushi Shimazu (3 out of 3 patents)

15. Kouta Hasebe (2 out of 7 patents)

Core Competencies:

Vitreous Silica Crucible

Silica Glass Crucible

Silicon Single Crystal

Fused Silica Crucible

Crucible Manufacturing

Temperature Distribution Calculation

Quartz Glass Purification

Carbon Electrode Grinding

Arc Discharge Method

High-Purity Silica

Crucible Handling Device

Fluid-Cooled Mold

65 patents: Sort by Forward Citations

1. 9469560 - Method of manufacturing vitreous silica crucible, vitreous silica crucible (2016-10-18),

2. 9260795 - Closure for silica glass crucible, silica glass crucible and method of handling the same (2016-02-16),

3. 9187357 - Vitreous silica crucible having outer, intermediate, and inner layers (2015-11-17),

4. 9150447 - Silica crucible for pulling silicon single crystal and method of producing the same (2015-10-06),

5. 9085480 - Method of manufacturing vitreous silica crucible (2015-07-21),

6. 8980004 - Crucible and method for pulling a single crystal (2015-03-17),

7. 8951346 - Silica glass crucible for pulling up silicon single crystal and method for manufacturing thereof (2015-02-10),

8. 8936685 - Vitreous silica crucible for pulling silicon single crystal and method of manufacturing the same (2015-01-20),

9. 8936684 - Vitreous silica crucible (2015-01-20),

10. 8888915 - High-purity vitreous silica crucible used for pulling large-diameter single-crystal silicon ingot (2014-11-18),

11. 8887374 - Method of manufacturing fused silica crucible (2014-11-18),

12. 8871026 - Vitreous silica crucible for pulling single-crystal silicon and method of manufacturing the same (2014-10-28),

13. 8844321 - Apparatus and method for manufacturing vitreous silica crucible (2014-09-30),

14. 8806892 - Method of manufacturing vitreous silica crucible (2014-08-19),

15. 8774959 - Method of calculating temperature distribution of crucible (2014-07-08),

Japan Super Quartz Corporation is a leading manufacturer and supplier of high-quality quartz products. With extensive experience and expertise, we offer a wide range of quartz materials, including quartz tubes, rods, plates, and more. Our products are widely used in the semiconductor, fiber optic, and solar industries. We are committed to providing superior quartz solutions to our customers worldwide, backed by exceptional customer service and technical support.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 23 2025

65 Patents

#1 in Akita 016-0892

#1,430 in Japan

#10,880 in the World

Japan Super Quartz Corporation

Forward Citations = 72

36 inventors:

Hiroshi Kishi (18 out of 39 patents)

Masaki Morikawa (16 out of 16 patents)

Masanori Fukui (14 out of 23 patents)

4. Toshiaki Sudo (14 out of 48 patents)

5. Minoru Kanda (11 out of 12 patents)

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