Company Filing History:
Years Active: 1976
Title: The Innovations of Kin-ichi Shirakawa: Pioneer in Polyurethane-Impregnated Paperboard
Introduction: Kin-ichi Shirakawa, an innovative inventor based in Ibaraki, Japan, has made significant contributions to the field of material science. With a focus on enhancing the properties of paperboard, Shirakawa's groundbreaking work has led to the development of a unique patented product that is set to redefine manufacturing applications.
Latest Patents: Shirakawa holds one notable patent titled "Paperboard impregnated with polyurethane resin." This invention involves a specialized paperboard impregnated with polyurethane resin at a specific NCO content and average molecular weight, optimized at a rate of 0.05 to 5.0 weight percent relative to the paperboard. The resulting product exhibits exceptional mechanical properties, including enhanced compressive strength, tensile strength, tearing strength, and folding endurance, even under wet conditions.
Career Highlights: Throughout her career, Kin-ichi Shirakawa has been associated with Takeda Chemical Industries, Ltd., where she has leveraged her expertise to push the boundaries of paperboard technologies. Her innovative approach to material durability and performance has garnered attention within the industry.
Collaborations: Shirakawa has worked alongside several notable colleagues in her career, including Seiichi Igarashi and Kazuo Kimura. Together, they have collaborated on various projects that aim to enhance the performance and applicability of composite materials in industrial settings.
Conclusion: Kin-ichi Shirakawa is a trailblazer in the development of polyurethane-impregnated paperboard. Her dedication to innovation, along with her collaborative spirit, continues to drive advancements in material science, promising a bright future for her contributions in the industry. With her pioneering patent, Shirakawa has laid the groundwork for further explorations in enhancing the physical properties of paper-based materials.