Company Filing History:
2 out of 342 
1 out of 28 Years Active: 2009-2011
Title: Hisashi Iwabuchi: Innovator in Paper Processing Technology
Introduction
Hisashi Iwabuchi is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of paper processing technology, holding two patents that showcase his innovative approach to improving the efficiency and effectiveness of deinking processes.
Latest Patents
Hisashi Iwabuchi's latest patents include a method for deinking recovered paper. The objective of this invention is to provide a process for producing deinked pulp from recovered paper containing stickies while preventing excessive reduction in the size of stickies. This method also aims to lower the chemical oxygen demand (COD) of effluents and produce deinked pulp with a smaller residual ink content. In the ink detachment stage, an anhydride of crystalline layered silicate is added, preferably in an amount of 0.1-1.5 weight % of absolute-dry pulp, and a deinking treatment is performed at a pH of 7.0-9.9. This innovative approach allows for effective reduction of stickies while maintaining ink detachment efficiency.
Another patent by Iwabuchi involves a kneader designed for papermaking. This kneader includes a casing with a papermaking material supply opening and an outlet located below it. It features multiple rotational shafts with blades attached, arranged in a manner that optimizes the mixing and processing of papermaking materials. This design enhances the overall efficiency of the kneading process.
Career Highlights
Throughout his career, Hisashi Iwabuchi has worked with prominent companies in the industry, including Nippon Paper Industries Co., Ltd. and Aikawa Iron Works Co., Ltd. His experience in these organizations has contributed to his expertise in paper processing technologies.
Collaborations
Hisashi Iwabuchi has collaborated with notable colleagues such as Chie Yuzawa and Yasuyuki Kamijo. These partnerships have likely enriched his work and led to further advancements in the field.
Conclusion
Hisashi Iwabuchi is a distinguished inventor whose work in paper processing technology has led to innovative solutions for deinking recovered paper. His contributions continue to impact the industry positively.
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