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Riken Corporation

USPTO Granted Patents = 859

CIPO Patents = 20

EPO Patents = 259

Forward Citations = 2,929

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1,563 inventors (with patents filed for the assignee):

Hideki Hirayama (44 out of 46 patents)

Shigeyuki Yokoyama (43 out of 53 patents)

Atsushi Miyawaki (36 out of 44 patents)

4. Yoshiki Sasai (35 out of 35 patents)

5. Kiwamu Kase (19 out of 21 patents)

6. Satoshi Wada (18 out of 31 patents)

7. Zhaomin Hou (18 out of 18 patents)

8. Hitoshi Ohmori (18 out of 34 patents)

9. Hideo Yokota (17 out of 18 patents)

10. Yoshihide Hayashizaki (17 out of 53 patents)

11. Hiroyuki Osada (16 out of 20 patents)

12. Yoshinori Tokura (16 out of 36 patents)

13. Satoshi Karasawa (16 out of 25 patents)

14. Masaru Taniguchi (15 out of 22 patents)

15. Tadao Asami (15 out of 21 patents)

Core Competencies:

Concentration Detection

Non-Destructive Inspection

Electron Microscopy

Raman Spectroscopy

Retinal Tissue Production

Laser Irradiation

Health-Level Measurement

Biological Material Preparation

Manganese-Iridium Composite

Quantum Information Processing

Thermoelectric Conversion

Optical Interference Measurement

859 patents: Sort by Forward Citations

1. 12523606 - METHOD FOR DETECTING TARGET SUBSTANCE, FLUID DEVICE, AND KIT (2026-01-13),

2. 12522859 - METHOD AND KIT FOR DETECTING TARGET NUCLEIC ACID FRAGMENT (2026-01-13),

3. 12517023 - Three-dimensional hardness distribution measurement method and three-dimensional hardness distribution measurement system (2026-01-06),

4. 12512243 - Superconducting coil device (2025-12-30),

5. 12501727 - Light-receiving element, x-ray imaging element, and electronic apparatus (2025-12-16),

6. 12498496 - Radiation imaging system and radiation imaging method (2025-12-16),

7. 12497433 - NOVEL FLUORESCENT PROTEIN AND UTILIZATION THEREOF (2025-12-16),

8. 12492373 - Production method for nerve tissue (2025-12-09),

9. 12487198 - Concentration detection device and concentration detection method (2025-12-02),

10. 12467889 - Non-destructive inspection device and non- destructive inspection system (2025-11-11),

11. 12463007 - Electron microscope analysis system (2025-11-04),

12. 12449365 - Raman scattering spectrometric apparatus and Raman scattering spectroscopic method (2025-10-21),

13. 12440605 - Method for producing regenerated hair follicle primordium (2025-10-14),

14. 12413070 - Direct-current bus control system (2025-09-09),

15. 12408815 - Tomographic image processing device, tomographic image processing method, program, information recording medium, and puncture member (2025-09-09),

Riken Corporation is a multinational automotive parts manufacturing company. They specialize in producing a wide range of automotive components such as pistons, engine gaskets, brake pads, and suspension parts. With over 90 years of experience, Riken Corporation is recognized globally for their high-quality products and advanced engineering solutions. They cater to various automobile manufacturers worldwide, offering innovative solutions that enhance vehicle performance and reliability. Visit their website to explore their product offerings and learn more about their commitment to excellence.

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

Company Badge

USPTO Data Jan 1 1976 - Jan 20 2026

859 Patents

#111 in Tokyo

#247 in Japan

#1,141 in the World

Riken Corporation

Forward Citations = 2,929

1,563 inventors:

Hideki Hirayama (44 out of 46 patents)

Shigeyuki Yokoyama (43 out of 53 patents)

Atsushi Miyawaki (36 out of 44 patents)

4. Yoshiki Sasai (35 out of 35 patents)

5. Kiwamu Kase (19 out of 21 patents)

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