Hideo Asao

Title: Hideo Asao: Innovator in Sewing Technology

Introduction

Hideo Asao is a notable inventor based in Chofu, Japan, recognized for his contributions to sewing technology. With a total of 9 patents to his name, Asao has made significant advancements in the design and functionality of sewing machines.

Latest Patents

Among his latest innovations are the two-needle sewing machine and the two-needle sewing machine stitch forming method. The two-needle sewing machine is designed to enhance the strength of seams in convex curve areas by positioning a pair of stitches closer together during the sewing process. This machine features a bed part, a column part, an arm part, and a needle shaft located at the front of the arm part. It includes two sewing needles attached to the needle shaft, two horizontal hooks that catch the needle thread loops, and a conveyor member that moves the material to be sewn in a direction approximately orthogonal to the bed part. Notably, the sewing needle positioned further from the column part is located closer to the material's conveyance side than the other needle.

Additionally, Asao's seam forming device and method aim to create seams with an attractive appearance while increasing tightening force and drastically preventing raveling. This innovative seam is formed by two needles arranged at right angles to the sewing direction, consisting of a chain seam and a lock seam. The design allows for the loop of the needle thread forming the chain seam to pass through the loop of the needle thread forming the lock seam before tightening, enhancing the overall seam quality.

Career Highlights

Hideo Asao has worked with prominent companies in the sewing industry, including Juki Corporation and Midori Anzen Hougi Co., Ltd. His experience in these organizations has contributed to his expertise and innovative approach to sewing technology.

Collaborations

Throughout his career, Asao has collaborated with talented individuals such as Nobuhiro Nishi and Satoru Yamazi. These partnerships have fostered a creative environment that has led to the development of groundbreaking sewing technologies.

Conclusion

Hideo Asao's contributions to sewing technology through his patents and collaborations have significantly impacted the industry. His innovative designs continue to enhance the functionality and quality of sewing machines, making him a key figure in this field.