Kiryu, Japan

Toshiyuki Amagasa

This inventor holds 30 USPTO granted patents and 8 published patent applications and 6 EPO patents, primarily in Wiper Control Systems. Top assignees: Mitsuba Corporation, Honda Motor Co., Ltd.. Active years: 1999-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Toshiyuki Amagasa. Retrieved from https://idiyas.com/inventor/toshiyuki-amagasa

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

USPTO Granted Patents = 30 

% Patents Active = 80.0

 

Average Co-Inventor Count = 1.6

ph-index = 6

Forward Citations = 100(Granted Patents)


Location History:

  • Gunma-ken, JP (1999)
  • Ota, JP (1999 - 2001)
  • Ohta, JP (2002)
  • Nitta-gun, JP (2007 - 2009)
  • Kiryu, JP (2008 - 2016)
  • Gunma, JP (2011 - 2019)

Company Filing History:


Years Active: 1999-2025

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Areas of Expertise:
Wiper Control Device
Motor Control Method
Wiper System
Motor Device
Wiper Motor
Wiper Control Method
Motor Control Device
Wiper Apparatus
Speed Reduction Mechanism
Drip-Proof Structure
Opposed Wiping Type
Wiper Driving Apparatus
30 patents (USPTO):Explore Patents

Title: Innovations of Toshiyuki Amagasa: A Pioneer in Wiper Technology

Introduction

Toshiyuki Amagasa, based in Kiryu, Japan, boasts an impressive portfolio of 27 patents. His contributions to the automotive industry, particularly in the realm of wiper technologies, showcase his dedication to enhancing vehicle safety and functionality.

Latest Patents

Among his latest innovations are two notable patents related to wiper systems. The first is a sophisticated **wiper motor** design, featuring a magnet with at least four poles and an armature positioned on its inner side. This invention incorporates a speed reduction mechanism with an output shaft to transmit armature rotation. It also includes a gear housing and cover that work in tandem with an absolute position detecting sensor, thereby providing precise control over the rotation of the armature shaft.

Amagasa's second patent addresses the **wiper system control method and device**, which includes wiper blades that execute a reciprocating wiping motion on windshields. This system utilizes a raindrop sensor to gauge rainfall intensity, enabling a heavy rain mode that optimizes the wiper blades' operation. The design ensures the driver maintains clear visibility by activating the driver-side wiper blade at high speed when rain levels exceed a predetermined threshold.

Career Highlights

Throughout his career, Toshiyuki Amagasa has lent his expertise to significant companies in the automotive sector, including Mitsuba Corporation and Honda Motor Co., Ltd. His work has not only advanced wiper technology but has also contributed to the overall safety and comfort of driving experiences.

Collaborations

Amagasa has collaborated with esteemed colleagues, such as Hiroji Okabe and Takashi Kondo, reinforcing the importance of teamwork in innovation and advancing automotive technologies.

Conclusion

Toshiyuki Amagasa's contributions to wiper technology demonstrate the impact of inventive thinking on everyday vehicle safety. His patents reflect a commitment to innovation and an understanding of driver needs, making significant strides in automotive engineering.

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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