Location History:
- Tajimi, JP (2013)
- Kasugai, JP (2017)
Company Filing History:
Years Active: 2013-2017
Title: Innovations of Makoto Ishizawa in Sewing Technology
Introduction
Makoto Ishizawa is a notable inventor based in Kasugai, Japan. He has made significant contributions to the field of sewing technology, holding two patents that showcase his innovative approach to enhancing sewing machines.
Latest Patents
One of Ishizawa's latest patents is for an embroidery machine capable of sewing cord material. This invention features a needle bar case with multiple needle bars. As the main shaft rotates, the needle bars are driven up and down, allowing for conventional sewing operations. The design includes ascending and descending bars that are supported on the needle bar case, driven by a secondary motor. A unique cord guide member is mounted to the lower end of the ascending/descending bars, replacing the traditional presser foot. This allows for selective cord sewing or loop sewing by adjusting the stroke of the ascending/descending bar.
Another significant patent is for the construction of a vertical full rotary hook for sewing machines. This design includes an inner rotary hook with a needle drop hole and side wall portions that define a passage for the sewing needle. These side wall portions are strategically positioned to prevent the upper thread from straying laterally, ensuring smooth operation and reducing the risk of thread loops.
Career Highlights
Ishizawa is currently employed at Tokai Kogyo Mishin Kabushiki Kaisha, where he continues to develop innovative sewing technologies. His work has contributed to advancements in the efficiency and functionality of sewing machines.
Collaborations
Throughout his career, Ishizawa has collaborated with talented coworkers, including Shinko Egami and Riquan Li. Their combined expertise has fostered a creative environment that encourages innovation in sewing technology.
Conclusion
Makoto Ishizawa's contributions to sewing technology through his patents demonstrate his commitment to innovation. His work not only enhances the functionality of sewing machines but also paves the way for future advancements in the industry.