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For the Inventor, By the Inventor

Otsu, Japan

Masao Natsuhara

This inventor holds 9 USPTO granted patents. Top assignee: Matsushita Electronics Corporation. Active years: 1984-2001.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masao Natsuhara. Retrieved from https://idiyas.com/inventor/masao-natsuhara

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 9

% Patents Active = 100.0

Average Co-Inventor Count = 3.5

ph-index = 5

Forward Citations = 78(Granted Patents)


Location History:

  • Kyoto, JP (1984)
  • Otsu, JP (1986 - 1989)
  • Ohtsu, JP (1985 - 1992)
  • Shiga, JP (2001)

Company Filing History:

goldMedal9 out of 655 
 
Matsushita Electronics Corporation
 patents

Years Active: 1984-2001

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9 patents (USPTO):Explore Patents
1. 6239546 - Color cathode ray-tube with electron gun having a reinforcing electrode (2001-05-29),
2. 5128586 - Color cathode ray tube gun having control grid of varying thickness (1992-07-07),
3. 4831309 - Cathode ray tube apparatus (1989-05-16),
4. 4814670 - Cathode ray tube apparatus having focusing grids with horizontally and (1989-03-21),
5. 4728859 - In-line electron gun (1988-03-01),
6. 4701677 - Color cathode ray tube apparatus (1987-10-20),
7. 4612474 - In-line type electron gun (1986-09-16),
8. 4542320 - Cathode ray tube (1985-09-17),
9. 4473775 - Cathode-ray tube device (1984-09-25),

Title: The Innovations of Masao Natsuhara

Introduction

Masao Natsuhara is a prominent inventor based in Otsu, Japan. He has made significant contributions to the field of electronics, particularly in the development of color cathode ray tubes. With a total of 9 patents to his name, Natsuhara's work has had a lasting impact on the industry.

Latest Patents

One of Natsuhara's latest patents is for a color cathode ray tube with an electron gun featuring a reinforcing electrode. This innovative design includes a reinforcing electrode plate that has at least one electron-beam through-hole, which connects to focusing and final accelerating electrodes. The design prevents deformation during assembly, thereby reducing variations in the electron gun's properties. Additionally, by adjusting the shape of the opening in the reinforcing electrode plate, the focusing power of the main lens can be fine-tuned in both horizontal and vertical directions.

Another notable patent is for a color cathode ray tube gun that incorporates a control grid of varying thickness. This design features a shadow mask type color cathode ray tube equipped with an in-line type electron gun. The control grid has a quadrupole structure with an elongated rectangular hole, establishing a specific relationship between its horizontal and vertical diameters.

Career Highlights

Natsuhara has spent a significant portion of his career at Matsushita Electronics Corporation, where he has been instrumental in advancing technology in the field of display systems. His innovative designs have contributed to the evolution of cathode ray tube technology, making it more efficient and reliable.

Collaborations

Throughout his career, Natsuhara has collaborated with notable colleagues such as Shigeya Ashizaki and Hiroshi Suzuki. These partnerships have fostered a creative environment that has led to groundbreaking advancements in their field.

Conclusion

Masao Natsuhara's contributions to the electronics industry, particularly in the realm of color cathode ray tubes, showcase his innovative spirit and technical expertise. His patents reflect a commitment to improving technology and enhancing performance in electronic devices.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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