Hekinan, Japan

Hitoshi Ishikawa

This inventor holds 18 USPTO granted patents, primarily in Sewing Machine Technology. Top assignees: Aisin Seiki Kabushiki Kaisha, Togo Seisakusyo Corporation. Active years: 1977-2010.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hitoshi Ishikawa. Retrieved from https://idiyas.com/inventor/hitoshi-ishikawa-hygpjx31

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


% Patents Active = 88.9

Average Co-Inventor Count = 2.6

ph-index = 6

Forward Citations = 111(Granted Patents)


Location History:

  • Kariya, JA (1977)
  • Toyota, JA (1977 - 1978)
  • Anjo, JA (1978)
  • Aichi, JP (1984)
  • Kariya, JP (1999)
  • Aichi-ken, JP (2001 - 2002)
  • Nishio, JP (1985 - 2009)
  • Hekinan, JP (2003 - 2010)

Company Filing History:


Years Active: 1977-2010

Loading Chart...
Areas of Expertise:
Sewing Machine
Stitch Pattern Selector
Thread Winding Mechanism
Power Window Regulator
Rotational Pulse Generator
Control Device
Motor Control
Spring Assembly
Reduced Height Sewing Machine
Copy Machine
Extension Table
Extruded Frame
18 patents (USPTO):Explore Patents

Title: Hitoshi Ishikawa: Innovator in Motor Technology and Sewing Mechanisms

Introduction

Hitoshi Ishikawa, a prolific inventor based in Hekinan, Japan, has made significant contributions to the fields of motor technology and sewing machine mechanisms. With a remarkable portfolio of 18 patents, Ishikawa has established himself as a key figure in technological advancements. His innovative spirit is reflected in his latest inventions that have the potential to impact various industries.

Latest Patents

Ishikawa's recent patents include a "Ripple Detecting Device" and an "Apparatus for Adjusting Timing of Needle and Looptaker of Sewing Machine." The ripple detecting device is designed to detect ripples from the output current of a motor by utilizing low band noise. This device employs an initial ripple detecting mechanism and a feature detecting device to enhance accuracy. By comparing past and present ripple characteristics, the device effectively identifies generated ripples.

The apparatus for adjusting the timing of a needle and looptaker in sewing machines showcases Ishikawa's ingenuity in mechanical design. This sophisticated apparatus features a cam member with dual surfaces, alongside a system of arm members and pulleys that ensure precise synchronization between the needle and looptaker. Such advancements are crucial for improving the efficiency and quality of zigzag sewing machines.

Career Highlights

Hitoshi Ishikawa has had a distinguished career, collaborating with renowned companies, including Aisin Seiki Kabushiki Kaisha. His work at these organizations has allowed him to develop and refine his innovative technologies, contributing significantly to both the automotive and textile industries. His expertise in motor technology is particularly notable, reinforcing the relevance of his inventions in various technical applications.

Collaborations

Throughout his career, Ishikawa has partnered with talented colleagues like Kimihiko Yamamoto and Hideyuki Kanie. These collaborations have fostered a creative environment that encourages innovation and problem-solving, allowing for greater advancements in the fields of interest.

Conclusion

Hitoshi Ishikawa stands out as a creative inventor, making substantial contributions to technology through his inventive works. His ability to blend practical solutions with advanced engineering principles exemplifies the spirit of innovation. With a promising portfolio of patents and a focus on impactful inventions, Ishikawa continues to inspire future generations of engineers and inventors.

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]
Loading…