Aichi, Japan

Yoshihiro Tatsumi

This inventor holds 6 USPTO granted patents. Top assignees: Nisshinbo Industries, Inc., Nisshinbo Ind. Inc.. Active years: 1996-2007.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshihiro Tatsumi. Retrieved from https://idiyas.com/inventor/yoshihiro-tatsumi

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


% Patents Active = 83.3

Average Co-Inventor Count = 2.3

ph-index = 3

Forward Citations = 19(Granted Patents)


Location History:

  • Nagoya, JP (1996)
  • Aichi-ken, JP (2001 - 2007)

Company Filing History:


Years Active: 1996-2007

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6 patents (USPTO):Explore Patents

Title: Exploring the Innovations of Yoshihiro Tatsumi

Introduction

Yoshihiro Tatsumi, an accomplished inventor based in Aichi-ken, Japan, has made significant contributions to the field of engineering with six registered patents to his name. His inventive spirit and innovative designs have paved the way for advancements in various mechanical applications, particularly in braking systems.

Latest Patents

Tatsumi's latest patents showcase his creative solutions to complex engineering problems. One of his notable inventions is the **Automatic Shoe Clearance Adjusting Apparatus**. This apparatus features a ratchet mechanism that includes a driving member with a pawl section, which engages with a ratchet wheel. The design incorporates an arcuate leaf spring, made of bimetal, which adjusts the clearance automatically. Remarkably, when temperatures exceed a predetermined threshold, the leaf spring deflects to weaken the resilient force, suspending the adjustment process to maintain optimal performance.

Another significant invention is the **Brake Cable Connecting Apparatus for Drum Brake**. This innovative device prevents brake cable disengagement through a streamlined structure that simplifies assembly. It comprises a strut that engages with the brake shoe and a plate-like brake lever that also connects to the brake shoe. The design allows the proximal portion of the brake lever to pivot within a spacious area between the strut's walls, enabling the inner cable to effectively facilitate braking while preventing disengagement through precise mechanical interactions with resilient stoppers.

Career Highlights

Throughout his career, Tatsumi has developed his inventive skills while working with notable companies, including Nisshinbo Industries, Inc. and Nisshinbo Ind. Inc. His professional experiences have enriched his knowledge and expertise, allowing him to innovate effectively in mechanical engineering.

Collaborations

Yoshihiro Tatsumi has collaborated with several talented individuals, including colleagues Seiji Asai and Junichi Ohnishi. Their teamwork has contributed to the successful development and refinement of his patented inventions, enhancing their functionality and practicality in real-world applications.

Conclusion

Yoshihiro Tatsumi's innovative patents highlight his significant role in advancing engineering solutions, particularly in brake systems. His commitment to innovation and collaboration with others in the field has led to practical inventions that improve mechanical applications, ensuring safety and effectiveness in transportation systems. As an inventor, Tatsumi continues to inspire the next generation 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]
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