Company Filing History:
Years Active: 1985-1989
Title: Yusei Sassa: Innovator in Slide Fastener Technology
Introduction
Yusei Sassa is a notable inventor based in Namerikawa, Japan. He has made significant contributions to the field of slide fastener technology, holding a total of 3 patents. His innovative approaches have enhanced the manufacturing processes and functionality of slide fasteners.
Latest Patents
One of Sassa's latest patents is a method of manufacturing a separable slide fastener. This method involves feeding an elongate continuous slide fastener chain in alternately opposite longitudinal directions through various steps. First, reinforcing film members are attached to the chain across an element-free space. A hole is then defined in the chain across this space. Following this, an insertable pin, a box pin, and a box are attached to the chain through the hole. Finally, a slider is mounted on a pair of rows of coupling elements through the element-free space, and top end stops are fixed to the beaded edges of the chain, which is then cut off transversely into a separable slide fastener.
Another significant patent by Sassa is a parts applicator for slide fasteners. This applicator is designed to apply fastener parts, such as pins of a separable end stop, to a fastener chain. It includes an anvil that is slidably mounted in an oscillatable holder, which has a pocket for receiving each fastener part. The holder can be moved between a reclining position and an upstanding position, allowing the pocket to align with the slide fastener chain. A cam mechanism acts on the anvil during the holder's angular reciprocation, enabling the anvil to move linearly while also moving with the holder.
Career Highlights
Yusei Sassa is currently employed at Yoshida Kogyo K.K., where he continues to innovate in the field of fastener technology. His work has been instrumental in improving the efficiency and effectiveness of slide fastener manufacturing processes.
Collaborations
Sassa collaborates with Kihei Takahashi, a fellow innovator in the industry. Their partnership has led to advancements in the design and functionality of slide fasteners.
Conclusion
Yusei Sassa's contributions to slide fastener technology through his patents and collaborations highlight his role as a key innovator in the field. His work