Hirakata, Japan

Hajimu Oonishi

This inventor holds 4 USPTO granted patents. Top assignees: Matsushita Electric Industrial Co., Ltd., Matsushita Electrical Industrial Co., Ltd.. Active years: 1981-1987.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hajimu Oonishi. Retrieved from https://idiyas.com/inventor/hajimu-oonishi

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile


% Patents Active = 100.0

Average Co-Inventor Count = 3.7

ph-index = 3

Forward Citations = 50(Granted Patents)


Location History:

  • Hirakata, JP (1981)
  • Osaka, JP (1987)

Company Filing History:


Years Active: 1981-1987

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4 patents (USPTO):Explore Patents

Title: Hajimu Oonishi: Innovator in Copying Technology

Introduction

Hajimu Oonishi is a notable inventor based in Hirakata, Japan. He has made significant contributions to the field of copying technology, holding a total of 4 patents. His innovative work has paved the way for advancements in image synthesis and copying apparatus.

Latest Patents

One of Oonishi's latest patents is a copying apparatus for synthesizing images. This apparatus allows for the synthesis of two images on a single piece of copying paper. It features a photosensitive body with a photosensitive surface, along with first and second light exposure assemblies. The first assembly uses a positive image source to create a latent image on the photosensitive surface, while the second assembly forms a second latent image. The apparatus ensures that toner adheres only to the portions of the surface where latent images have been formed, making the images visible. This technology enables the synthesis of multiple images in different colors on a single sheet of copying paper without the need for negative image sources.

Career Highlights

Oonishi has worked with prominent companies such as Matsushita Electric Industrial Co., Ltd. and Matsushita Electrical Industrial Co., Ltd. His experience in these organizations has contributed to his expertise in developing innovative copying technologies.

Collaborations

Throughout his career, Oonishi has collaborated with notable individuals, including Yukimasa Kuramoto and Yukio Sakai. These collaborations have likely enriched his work and led to further advancements in his field.

Conclusion

Hajimu Oonishi's contributions to copying technology demonstrate his innovative spirit and dedication to advancing the field. His patents reflect a commitment to improving image synthesis and copying processes, making a lasting impact on the industry.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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