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For the Inventor, By the Inventor

Nagaoka, Japan

Tetsuya Iwata

This inventor holds 13 USPTO granted patents. Top assignees: Alps Electric Co., Ltd., System Seiko Co., Ltd.. Active years: 1985-2001.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tetsuya Iwata. Retrieved from https://idiyas.com/inventor/tetsuya-iwata-k7fqv9dw

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

USPTO Granted Patents = 13

% Patents Active = 100.0

Average Co-Inventor Count = 1.6

ph-index = 6

Forward Citations = 98(Granted Patents)


Location History:

  • Niigata, JP (1985)
  • Koide, JP (1986 - 1987)
  • Yunotani, JP (1986 - 1988)
  • Nagaoka, JP (1988 - 2001)

Company Filing History:

goldMedal10 out of 4,048 
 
Alps Electric Co., Ltd.
 patents
silverMedal3 out of 10 
 
System Seiko Co., Ltd.
 patents

Years Active: 1985-2001

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13 patents (USPTO):Explore Patents
1. 6275032 - Surface flatness measuring apparatus (2001-08-14),
2. 6033522 - Surface treatment method and apparatus for rotatable disc (2000-03-07),
3. 6011618 - Method and apparatus of surface inspection of a disk (2000-01-04),
4. 5146379 - Thin film magnetic head (1992-09-08),
5. 4819112 - Thin film magnetic head (1989-04-04),
6. 4811142 - Magnetic head for vertical magnetic recording and method of producing (1989-03-07),
7. 4780780 - Magnetic head (1988-10-25),
8. 4768121 - Magnetic head formed by composite main pole film and winding core for (1988-08-30),
9. 4754352 - Magnetic drum recording apparatus (1988-06-28),
10. 4639809 - Magnetic head (1987-01-27),
11. 4630253 - Electromagnetic pickup cartridge having elongate core elements (1986-12-16),
12. 4625249 - Head holding mechanism of magnetic disk device (1986-11-25),
13. 4514776 - Magnetic head and method of manufacturing the same (1985-04-30),

Title: Tetsuya Iwata: Innovator in Surface Measurement and Treatment Technologies

Introduction

Tetsuya Iwata is a notable inventor based in Nagaoka, Japan. He has made significant contributions to the field of surface measurement and treatment technologies. With a total of 13 patents to his name, Iwata's work has advanced the capabilities of measuring and treating surfaces of various objects.

Latest Patents

Among his latest innovations is a surface flatness measuring apparatus. This device is designed to measure the flatness of plate-shaped objects, such as disks, in a non-contact manner. The apparatus holds the disk on a measuring table, utilizing eddy current undulation sensors to detect any surface undulations. A flatness map is generated based on the sensor data and displayed for analysis. Another significant patent is a surface treatment method and apparatus for a rotating disc. This system employs positioning rollers to hold the disk in place while treatment rollers apply frictional forces to treat the surfaces effectively.

Career Highlights

Iwata has worked with prominent companies, including Alps Electric Co., Ltd. and System Seiko Co., Ltd. His experience in these organizations has contributed to his expertise in developing innovative technologies.

Collaborations

Throughout his career, Iwata has collaborated with talented individuals such as Yasuo Tanaka and Keishi Nakashima. These partnerships have fostered a creative environment that has led to the development of groundbreaking inventions.

Conclusion

Tetsuya Iwata's contributions to surface measurement and treatment technologies highlight his innovative spirit and dedication to advancing engineering solutions. His patents reflect a commitment to improving the precision and efficiency of industrial processes.

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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