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Masamoto Nakazawa

This inventor holds 74 USPTO granted patents and 3 published patent applications and 20 EPO patents, primarily in Image Processing Technology (CPC class H04N). Top assignee: Ricoh Company, Ltd.. Active years: 2010-2024.

USPTO Granted Patents = 74 (Patent Applications = 3)

% Patents Active = 86.5

EPO Patents = 20 (Patent Applications = 23)

Average Co-Inventor Count = 2.1

ph-index = 4

Forward Citations = 96(Granted Patents)

Forward Citations (Not Self Cited) = 58(Dec 10, 2025)

Inventors with similar research interests:

Location History:

Kawasaki, JP (2013 - 2014)
Kanagawa, JP (2010 - 2024)

Company Filing History:

74 out of 28,934

Ricoh Company, Ltd.

patents

Years Active: 2010-2024

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Areas of Expertise:

Image Processing

Reading Device

Photoelectric Conversion

Signal Processing

Illuminating Device

Solid-State Imaging

Fraud Detection

Document Size Detection

Color Inspection

Position Detection

Abnormal Pixel Detection

74 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12081714 - Photoelectric conversion element, reading device, and image processing apparatus (2024-09-03),

2. 11973904 - Signal processing device, imaging device, reading device, image forming device, and signal processing method (2024-04-30),

3. 11936829 - Illuminating device, image reading device, and image forming apparatus with multiple light sources (2024-03-19),

4. 11792539 - Solid-state imaging element, reading device, image processing apparatus, and control method (2023-10-17),

5. 11770487 - Reading device, image forming apparatus, and state detection method to detect a multi-feed state of an object using reflected light in a visible wavelength and an invisible wavelength and comparing reading value results to references associated with the invisible and visible wavelength reference values (2023-09-26),

6. 11722622 - Photoelectric conversion element, reading device, and image processing apparatus (2023-08-08),

7. 11695892 - Reading device and method of detecting feature amount from visible or invisible image (2023-07-04),

8. 11694455 - Fraud confirmation assisting apparatus and fraud confirmation method including a light source irradiating an object in the invisible wavelength range and read by a reading sensor to output a plurality of pieces of fraud confirmation information (2023-07-04),

9. 11553108 - Reading device, image forming apparatus, and method (2023-01-10),

10. 11546535 - Abnormal-pixel detecting device, image forming apparatus, and method of detecting abnormal pixel (2023-01-03),

11. 11477342 - Reading device, image forming apparatus, and method detecting and correcting reading-depth change based by reading image in first and second wavelength range (2022-10-18),

12. 11457121 - Reading device, image forming apparatus, and color mixture prevention method (2022-09-27),

13. 11457116 - Image processing apparatus and image reading method (2022-09-27),

14. 11360422 - Position detector, image forming apparatus, position detecting method, and non-transitory recording medium storing position detecting program code (2022-06-14),

15. 11317000 - Image processing apparatus having invisible component remover, image processing method, and recording medium (2022-04-26),

Title: Masamoto Nakazawa: A Pioneer in Photoelectric Innovations

Introduction

Masamoto Nakazawa, based in Kanagawa, Japan, is an inventive mind whose contributions to the field of photoelectric technology are noteworthy. With a remarkable portfolio of 74 patents, he has made significant strides in developing innovative devices that enhance image processing and signal handling.

Latest Patents

Nakazawa's latest patents include groundbreaking work on a photoelectric conversion element, reading devices, and image processing apparatuses. His photoelectric conversion element showcases a unique design involving a first pixel array and a second pixel array, each with light-receiving sections tailored to different wavelengths. The first pixel array captures light in the visible spectrum, while the second array focuses on wavelengths outside this range. This innovative approach allows for more efficient signal transmission to subsequent processing stages. Additionally, his patent for a signal processing device features a data writing unit, a channel number converting unit, and multiple serial data transferring units, which optimise the transfer of data between channels for enhanced processing capabilities.

Career Highlights

Throughout his career at Ricoh Company, Ltd., Nakazawa has achieved significant recognition for his technological advancements in imaging and signal processing. His inventions have broader implications in the fields of electronics and telecommunications, influencing how data is captured and processed.

Collaborations

Masamoto Nakazawa collaborates with esteemed colleagues such as Hideki Hashimoto and Tadaaki Oyama. These partnerships have fostered a vibrant work environment conducive to innovation, allowing for the exchange of ideas and expertise that drive their collective projects forward.

Conclusion

In summary, Masamoto Nakazawa stands out as a prominent inventor in the realm of photoelectric technology. His impressive portfolio of patents, combined with his collaborations and contributions at Ricoh Company, Ltd., underscores his role as a key player in advancing the field of electronic imaging and signal processing.

Profile summary based on public USPTO records.

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