This inventor holds 36 USPTO granted patents, primarily in Electrophotographic Materials. Top assignees: Hitachi, Ltd., Hitachi Chemical Company, Ltd., Hitachi Koki Co., Ltd.. Active years: 1977-1987.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Hitachi, JA (1977)
- Ibaraki, JP (1981)
- Hitachi, JP (1978 - 1987)
Company Filing History:
29 out of 42,740 
6 out of 1,641 
3 out of 1,267 
Years Active: 1977-1987
Areas of Expertise:
Title: Hirosada Morishita: A Pioneer in Ink Composition and Photoconductive Technologies
Introduction
Hirosada Morishita, an accomplished inventor based in Hitachi, Japan, has made significant contributions to the field of materials science and ink technology. With a remarkable portfolio of 36 patents, Morishita has demonstrated a dedication to innovation that has propelled advancements in both industrial printing and electrophotography.
Latest Patents
Among his latest innovations, Morishita has developed a white ink composition specifically designed for ink-jet printing. This unique formulation consists of a white pigment with a particle size of less than 3 micrometers, combined with a solvent and a binder resin. The composition is notable for its print stability, dispersion stability, and redispersability, ensuring no nozzle clogging during operation. Additionally, Morishita's patent on a composite type photosensitive member highlights the use of a new metal-free phthalocyanine for electrophotography applications. This photosensitive member includes a charge generating layer with high sensitivity to long-wavelength light, making it particularly effective for printers that utilize semiconductor lasers.
Career Highlights
Throughout his career, Hirosada Morishita has been associated with reputable organizations such as Hitachi, Ltd. and Hitachi Chemical Company, Ltd. His work at these companies has been instrumental in driving forward the development of innovative materials and technologies that are essential to modern printing and imaging systems.
Collaborations
Morishita has collaborated with talented colleagues, including Yasuki Mori and Motoyo Wajima. Together, they have explored various aspects of ink and photoconductive materials, contributing to the advancements in their respective fields.
Conclusion
Hirosada Morishita stands out as a prominent figure in the realm of innovations in ink compositions and electrophotographic technology. His extensive patent portfolio and collaborative efforts reflect a commitment to enhancing the efficiency and effectiveness of printing technologies. Through his work, Morishita continues to influence the future of industrial applications and materials science.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile