Company Filing History:
1 out of 229 
1 out of 14 
1 out of 12 Years Active: 1986-1990
Title: Hisao Maruyama: Innovator in Ink Jet Technology and Packaging Solutions
Introduction
Hisao Maruyama, a talented inventor based in Toyonaka, Japan, has made significant contributions to the fields of ink jet technology and packaging solutions. He holds two patents that reflect his innovative thinking and dedication to enhancing product performance in these areas.
Latest Patents
Maruyama's latest patent focuses on the development of an ink jet recording sheet and the process for producing it. This patent describes an ink jet recording sheet that possesses an enhanced ink-absorbing property and outstanding image-forming characteristics. The invention involves a specific coating layer made of a pigment and a resinous binder, which is a cationic copolymer. This copolymer is created by copolymerizing fatty acid vinyl ester with a small quantity of a cationic comonomer. The result is a sheet that not only provides vibrant color reproduction but also has excellent surface hardness.
His second patent presents a method for manufacturing containers that are covered with a protective sheet. This innovative method incorporates a foamed resin or rubber film layer, allowing for a tight fit of a heat shrinkable sheet around the container. By mechanically foaming the resin or rubber solution prior to application, Maruyama's process prevents surface waviness during heating, enhancing both the appearance and printing performance of the final product.
Career Highlights
Throughout his career, Hisao Maruyama has worked with prominent companies such as Oji Paper Co., Ltd. and Fuji Seal Industry Co., Ltd. His experience in these organizations has provided him with the valuable insight required to develop groundbreaking inventions that address industry needs and improve existing technologies.
Collaborations
Maruyama has collaborated with esteemed colleagues like Masahiko Kitajima and Kenji Yasuda. These partnerships have further enriched his inventive pursuits and led to the successful development of patents that contribute to advancements in their respective fields.
Conclusion
Hisao Maruyama is a distinguished inventor whose work, characterized by innovative solutions and a focus on quality, has made lasting impacts in ink jet technology and packaging methods. With two patents to his name, his contributions will undoubtedly continue to inspire the next generation of inventors and innovators in Japan and beyond.