Location History:
- Amagasaki, JA (1976)
- Amagasaki, JP (1981 - 1987)
- Kanagawa, JP (1989)
- Tokyo, JP (2000)
- Kamakura, JP (1988 - 2001)
Company Filing History:
25 out of 21,351 
7 out of 1,268 
1 out of 488 
Years Active: 1976-2001
Title: **Masaru Ohnishi: Innovator in Image Processing and Ink Technology**
Introduction
Masaru Ohnishi, based in Kamakura, Japan, is a prolific inventor with an impressive portfolio of 27 patents. His contributions to technology have been particularly impactful in the fields of image data compression and inkjet printing, showcasing his innovative spirit and engineering prowess.
Latest Patents
Among Ohnishi's notable inventions is the **Image Data Compression-Expansion Circuit**. This technology employs a line buffer device that temporarily stores a section of original image data divided into small blocks. Each block is encoded into a fixed length by a compression processor, significantly simplifying the circuit structure and reducing encoding processing time. The device consists of a first-stage line buffer group with one fewer line buffer than the number of lines constituting a block and a second-stage line buffer group that matches the block's line count.
Another significant patent is the **Ink Jet Printer**, which features multiple heads containing different ink densities for the same color. This system allows the printer to control the volume of ink drops for each dot accurately. During pixel formation, the control means selects a head and ejects various ink types at the same spot using varied dot diameters, leading to dense gradation representations.
Career Highlights
Ohnishi has had a noteworthy career, having worked with reputable companies such as Mitsubishi Electric Corporation and Toppan Printing Co., Ltd. His experience in these organizations has undoubtedly contributed to the development and refinement of his innovative technologies.
Collaborations
Throughout his career, Ohnishi has collaborated with several talented coworkers, including Keiki Yamada and Niro Watanabe. Their combined expertise and shared vision in technological advancements have enriched the projects they have undertaken.
Conclusion
Masaru Ohnishi is a distinguished inventor whose work in image processing and ink technology has greatly contributed to modern advancements in these fields. With a total of 27 patents to his name, he continues to inspire future generations of inventors with his innovative approaches and dedication to technology.
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.