Location History:
- Hitachi, JA (1977)
- Ibaraki, JP (1981)
- Hitachi, JP (1978 - 1987)
Company Filing History:
29 out of 42,485 
6 out of 1,641 
3 out of 2,333 
Years Active: 1977-1987
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.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.