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Rigaku Industrial Corporation

USPTO Granted Patents = 29

Trademarks = 5

Forward Citations = 290

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48 inventors (with patents filed for the assignee):

Naoki Kawahara (5 out of 8 patents)

Takashi Shoji (5 out of 5 patents)

Yoshiyuki Kataoka (4 out of 16 patents)

4. Yasujiro Yamada (4 out of 12 patents)

5. Tadashi Utaka (4 out of 5 patents)

6. Hisayuki Kohno (4 out of 4 patents)

7. Motoyuki Yamagami (3 out of 5 patents)

8. Kouichi Aoyagi (3 out of 4 patents)

9. Hiroaki Kita (2 out of 10 patents)

10. Akihiro Ikeshita (2 out of 4 patents)

11. Makoto Doi (2 out of 5 patents)

12. Kazuaki Shimizu (2 out of 2 patents)

13. Akira Arake (2 out of 2 patents)

14. Koushi Sumii (2 out of 2 patents)

15. Takao Moriyama (1 out of 2 patents)

29 patents: Sort by Forward Citations

1. 7949093 - X-ray fluorescence spectrometer (2011-05-24),

2. 7848483 - Magnesium silicide-based multilayer x-ray fluorescence analyzers (2010-12-07),

3. 7450685 - X-ray fluorescence spectrometer and program for use therewith (2008-11-11),

4. 7356114 - X-ray fluorescence spectrometer (2008-04-08),

5. 7187751 - X-ray fluorescence spectrometer and program used therein (2007-03-06),

6. 7016463 - Sample retainer for x-ray fluorescence analysis, x-ray fluorescence analyzing method using the same and x-ray fluorescence spectrometer therefor (2006-03-21),

7. 6937691 - X-ray fluorescence spectrometric system and a program for use therein (2005-08-30),

8. 6836533 - Multi-layer film spectroscopic element for boron fluorescene X-ray analysis (2004-12-28),

9. 6824746 - High-energy beam irradiating desulfurization device (2004-11-30),

10. 6735276 - Sample preprocessing system for a fluorescent X-ray analysis and X-ray fluorescence spectrometric system using the same (2004-05-11),

11. 6708121 - Analyzing apparatus (2004-03-16),

12. 6700951 - X-ray fluorescence spectrometer (2004-03-02),

13. 6668038 - X-ray fluorescence spectrometer (2003-12-23),

14. 6647090 - X-ray fluorescence spectrometer (2003-11-11),

15. 6611577 - X-ray fluorescence analysis and apparatus therefor (2003-08-26),

Rigaku Industrial Corporation provides advanced analytical equipment and solutions for scientific and industrial applications. With over 60 years of experience, Rigaku is a leading manufacturer and supplier of X-ray analysis instruments, including X-ray diffraction (XRD), X-ray fluorescence (XRF), and more. Rigaku's innovative technologies and solutions are trusted by researchers and industry professionals worldwide.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

29 Patents

#946 in Tokyo

#2,304 in Japan

#21,844 in the World

Rigaku Industrial Corporation

Forward Citations = 290

48 inventors:

Naoki Kawahara (5 out of 8 patents)

Takashi Shoji (5 out of 5 patents)

Yoshiyuki Kataoka (4 out of 16 patents)

4. Yasujiro Yamada (4 out of 12 patents)

5. Tadashi Utaka (4 out of 5 patents)

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