This inventor holds 12 USPTO granted patents and 2 published patent applications. Top assignees: Matsushita Electric Industrial Co., Ltd., Panasonic Corporation, Panasonic Intellectual Property Management Co., Ltd.. Active years: 1998-2025.
Location History:
- Toyonaka, JP (1998 - 2002)
- Osaka, JP (2004 - 2016)
Company Filing History:
9 out of 27,375 
1 out of 16,454 
1 out of 13,338 Years Active: 1998-2025
Title: Hirokazu Sakaguchi: Innovator in Lighting Optical Systems
Introduction
Hirokazu Sakaguchi is a prominent inventor based in Osaka, Japan. He has made significant contributions to the field of optical systems, holding a total of 12 patents. His work focuses on developing innovative lighting solutions that enhance the efficiency and functionality of various devices.
Latest Patents
One of Sakaguchi's latest patents is a lighting optical system designed to provide a low-cost solution that does not require a refractive element for each laser chip. This system includes a light source with multiple multi-emitter laser chips arranged in a specific direction. Each chip features a first emitter and a second emitter, which output different types of light. The system also incorporates a series of convex lenses positioned close to the laser chips, along with a refractive element that converts the emitted lights into approximately parallel beams.
Another notable patent is for a projection display device, which consists of a projector that includes a light source, a reflective light bulb, and an optical system that guides light to the bulb. This innovative design enhances the projection quality and efficiency of the device.
Career Highlights
Sakaguchi has worked with several esteemed companies throughout his career, including Matsushita Electric Industrial Co., Ltd. and Panasonic Intellectual Property Management Co., Ltd. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking technologies in the optical field.
Collaborations
Throughout his career, Sakaguchi has collaborated with notable colleagues, including Katsuaki Mitani and Satoshi Aoki. These partnerships have fostered a creative environment that has led to the development of innovative solutions in lighting and projection technologies.
Conclusion
Hirokazu Sakaguchi is a distinguished inventor whose work in lighting optical systems has made a significant impact on the industry. His innovative patents and collaborations reflect his dedication to advancing technology in this field.