Kosuke Doi

Title: **Inventor Kosuke Doi: Innovator in Titanium Applications**

Introduction

Kosuke Doi, an accomplished inventor based in Wako, Japan, has made significant contributions to the field of materials engineering, particularly in titanium alloys. With a portfolio of six patents to his name, Doi's innovations are essential in advancing manufacturing processes and reducing costs in various applications.

Latest Patents

Doi's recent inventions exhibit his expertise in titanium-related technologies. One notable patent is for a **titanium alloy bolt and its manufacturing process**, which reveals a method to create titanium alloy bolts at ambient temperature using a Ti-Fe-O alloy as the material. This innovation features a screw thread that is formed through drawing and rolling, showcasing advancements in manufacturing efficiency.

Another significant patent by Doi is for a **valve spring retainer made of titanium**. This invention aims to reduce raw material and processing costs by utilizing a titanium alloy that consists of specific weight percentages of iron, oxygen, and nitrogen. The valve spring retainer is formed through cold forging, demonstrating Doi's commitment to cost-effective and sustainable engineering solutions.

Career Highlights

Throughout his career, Kosuke Doi has worked with leading companies in the automotive and manufacturing sectors, including Honda Motor Co., Ltd. and Tanaka Seimitsu Kogyo Co., Ltd. His work experience in these prominent organizations has helped shape his understanding of market needs and technological advancements.

Collaborations

Doi’s innovations have been further enhanced through collaborations with notable coworkers, including Hiroyuki Horimura and Hideaki Sumitomo. These partnerships showcase the collaborative spirit in the field of engineering, where diverse expertise combines to foster innovation.

Conclusion

Kosuke Doi continues to be a pivotal figure in the innovation of titanium applications, contributing valuable patents to the industry. His efforts not only drive advancements in manufacturing but also reinforce the importance of research and collaboration in the pursuit of effective engineering solutions. Doi’s work exemplifies how targeted innovation can lead to significant improvements in both cost efficiency and material performance.