This inventor holds 1 USPTO granted patent. Top assignee: Oji Paper Co., Ltd.. Active years: 2004.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 2004
Title: Masahiro Kumabe and Recyclable Water-Resistant Corrugated Fiberboard
Introduction
Masahiro Kumabe is an inventor based in Tokyo, Japan, associated with Oji Paper Co., Ltd. His patent work includes a recyclable corrugated fiberboard sheet designed to resist water while remaining suitable for recycling after use.
Latest Patents
The available information identifies 1 patent for Kumabe: “Recyclable Water-Resistant Corrugated Fiberboard Sheet.” The invention describes a corrugated, water-resistant core sheet with water-resistant linerboard adhered to both sides. It specifies water repellency of at least R 6 for at least one relevant surface, measured under JIS P8137, and limits the sheet’s Cobb water absorption to no more than 30 g/m² after 30 minutes, measured under JIS P8140. These features aim to provide water resistance while allowing the fiberboard to be recycled after use.
Career Highlights
Kumabe’s listed patent reflects work on improving the performance and recyclability of paper-based packaging materials. His association with Oji Paper Co., Ltd. places this invention within the paper and fiberboard industry.
Collaborations
Masaru Yamakoshi and Tatsuhiko Nishiyauchi are identified as Kumabe’s coworkers. The available information does not specify their roles in the patent or the extent of their collaboration.
Conclusion
Masahiro Kumabe’s documented invention combines water-resistant construction with recyclability, addressing two important considerations in corrugated fiberboard design.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile