Company Filing History:
1 out of 405 
1 out of 5 Years Active: 1990-2004
Title: Kiyokazu Ishiwatari: Innovator in Straw Tube Technology
Introduction
Kiyokazu Ishiwatari is a notable inventor based in Kanagawa, Japan. He has made significant contributions to the field of packaging technology, particularly with his innovative designs for straw tubes and can covers. With a total of 2 patents, Ishiwatari's work addresses practical challenges in product usability and manufacturing efficiency.
Latest Patents
Ishiwatari's latest patents include a straw tube and an apparatus and method for producing the same. The primary objective of his straw tube invention is to prevent the reduction of pressure inside a drinking container when it is being used. The design features a tube body with multiple grooves extending longitudinally, along with a convex streak that projects outward from the outer circumferential wall. The associated apparatus includes a rotating drum with tube loading grooves, a female rod capable of reciprocating within these grooves, and a male roller that synchronizes with the female rod to facilitate the production of the straw tube.
Another significant patent involves a method of preforming a cover member for a can-shaped container. This method utilizes a planar base with a metallic barrier layer and resin layers on either side. The base is premolded to create a flat bottom recess and a cylindrical sidewall, which is then injection molded with resin to form either a uniform bottom cover or a top cover with a tab.
Career Highlights
Throughout his career, Kiyokazu Ishiwatari has worked with prominent companies such as Showa Denko and Showa Denko Plastic Products Co., Ltd. His experience in these organizations has allowed him to refine his skills and contribute to innovative packaging solutions.
Collaborations
Ishiwatari has collaborated with notable colleagues, including Yoshitsugu Hamada and Osamu Yamada. These partnerships have likely enhanced his inventive processes and broadened the impact of his work in the industry.
Conclusion
Kiyokazu Ishiwatari's contributions to straw tube technology and can cover methods demonstrate his commitment to innovation in packaging. His patents reflect a deep understanding of both user needs and manufacturing processes. Ishiwatari's work continues to influence the field, showcasing the importance of inventive solutions in everyday products.