Yoshiharu Kawashima is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of ink jet recording materials, holding a total of three patents. His work focuses on enhancing the quality and performance of ink jet recording mediums.

Latest Patents

Kawashima's latest patents include an innovative ink jet recording material. This material features a paper sheet substrate and an ink receiving layer that contains a xerogel porous pigment. It is designed to provide excellent ink absorption and high clarity in ink images, with a water-dipping expansion of 0.3% or less. Another significant patent is for an ink jet recording medium that boasts excellent image reproducibility, ink-drying properties, and pencil writing capability. This medium includes porous xerogel pigment particles in its ink receiving layer, which has a pencil scratch value of 50 g or more.

Career Highlights

Throughout his career, Kawashima has worked with prominent companies such as Oji Paper Co., Ltd. and Nihon Kaiheiki Kogyo Kabushiki Kaisha. His experience in these organizations has contributed to his expertise in developing advanced ink jet technologies.

Collaborations

Kawashima has collaborated with notable individuals in his field, including Yoshitaka Okumura and Takaaki Kohro. These partnerships have likely enhanced his innovative capabilities and broadened the impact of his inventions.

Conclusion

Yoshiharu Kawashima's contributions to ink jet recording technology demonstrate his commitment to innovation and excellence. His patents reflect a deep understanding of material science and practical applications in the industry.

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