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Marubun Corporation

USPTO Granted Patents = 9

EPO Patents = 5

Trademarks = 1

Forward Citations = 33

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22 inventors (with patents filed for the assignee):

Yukio Kashima (9 out of 9 patents)

Takaharu Tashiro (9 out of 15 patents)

Ryuichiro Kamimura (9 out of 11 patents)

4. Yamato Osada (9 out of 10 patents)

5. Eriko Matsuura (8 out of 8 patents)

6. Hideki Hirayama (8 out of 46 patents)

7. Mitsunori Kokubo (7 out of 31 patents)

8. Takafumi Ookawa (5 out of 10 patents)

9. Satoshi Shimatani (3 out of 12 patents)

10. Toshiro Morita (3 out of 13 patents)

11. Noritoshi Maeda (2 out of 3 patents)

12. Masafumi Jo (2 out of 5 patents)

13. Sung Won Youn (2 out of 3 patents)

14. Hideki Takagi (2 out of 17 patents)

15. Hiromi Nishihara (2 out of 8 patents)

9 patents: Sort by Forward Citations

1. 11309454 - Deep ultraviolet LED and method for producing the same (2022-04-19),

2. 10950751 - Deep ultraviolet LED and method for manufacturing the same (2021-03-16),

3. 10680134 - Deep ultraviolet LED and method for manufacturing the same (2020-06-09),

4. 10056526 - Deep ultraviolet LED and method for manufacturing the same (2018-08-21),

5. 9929317 - Deep ultraviolet LED and method for manufacturing the same (2018-03-27),

6. 9929311 - Semiconductor light emitting element and method for producing the same (2018-03-27),

7. 9806229 - Deep ultraviolet LED and method for manufacturing the same (2017-10-31),

8. 9349918 - Light emitting element and method for manufacturing same (2016-05-24),

9. 8921135 - Method for manufacturing device (2014-12-30),

Marubun Corporation is a Japanese trading company, providing a wide range of electronic components, materials, and equipment for various industries. With over 90 years of experience, Marubun offers high-quality products and solutions in the fields of semiconductors, displays, lighting, automotive, industrial machinery, telecommunications, and more. Their commitment to customer satisfaction and strong relationships with suppliers make them a trusted partner for businesses worldwide.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

9 Patents

#1,788 in Tokyo

#4,582 in Japan

Marubun Corporation

Forward Citations = 33

22 inventors:

Yukio Kashima (9 out of 9 patents)

Takaharu Tashiro (9 out of 15 patents)

Ryuichiro Kamimura (9 out of 11 patents)

4. Yamato Osada (9 out of 10 patents)

5. Eriko Matsuura (8 out of 8 patents)

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