This inventor holds 6 USPTO granted patents. Top assignees: Kabushiki Kaisha Toshiba, Other. Active years: 2003-2006.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Tokyo, JP (2003)
- Kanagawa-Ken, JP (2004 - 2006)
Company Filing History:

Years Active: 2003-2006
Title: Haruhi Oh-Oka: Innovator in Liquid Developer Technology
Introduction
Haruhi Oh-Oka is a notable inventor based in Kanagawa-ken, Japan. He has made significant contributions to the field of imaging technology, particularly through his innovative work on liquid developers. With a total of 6 patents to his name, Oh-Oka has established himself as a key figure in the development of efficient image formation methods.
Latest Patents
Oh-Oka's latest patents include a liquid developer, a method of manufacturing the liquid developer, and an image forming method and apparatus. These inventions focus on achieving high transfer efficiency and appropriate tolerance to repetitive image formation. The liquid developer consists of toner particles dispersed in an electrically non-conductive liquid solvent. Each toner particle features a resin particle that is non-soluble in the liquid developer, along with pigment particles formed on the surface of the resin particle. This design helps to suppress contact between the resin particles. The resin particles are preferably characterized by a glass transition temperature of not less than room temperature. One method of manufacturing the liquid developer involves milling pigment particles in a resin particles dispersion liquid at a process temperature higher than the glass transition temperature of the resin particles, allowing the pigments to form on the surface of the resin particles.
Career Highlights
Throughout his career, Haruhi Oh-Oka has worked with prominent companies, including Kabushiki Kaisha Toshiba. His experience in these organizations has contributed to his expertise in developing advanced imaging technologies.
Collaborations
Oh-Oka has collaborated with several talented individuals, including Yasushi Shinjo and Atsuko Iida, who is a woman. These collaborations have likely enriched his work and led to innovative advancements in his field.
Conclusion
Haruhi Oh-Oka's contributions to liquid developer technology and imaging methods highlight his role as an influential inventor. His patents reflect a commitment to enhancing image formation efficiency and quality.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile