Takasago, Japan

Osamu Fujiwara

This inventor holds 4 USPTO granted patents. Top assignee: Sanyo Electric Co., Ltd.. Active years: 1986-1988.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Osamu Fujiwara. Retrieved from https://idiyas.com/inventor/osamu-fujiwara

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 = 3.4

ph-index = 4

Forward Citations = 60(Granted Patents)


Location History:

  • Takasago, JP (1986 - 1987)
  • Kobe, JP (1987 - 1988)

Company Filing History:


Years Active: 1986-1988

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4 patents (USPTO):Explore Patents

Title: Osamu Fujiwara: Innovator in Fuel Cell Technology

Introduction

Osamu Fujiwara is a prominent inventor based in Takasago, Japan. He has made significant contributions to the field of fuel cell technology, holding a total of 4 patents. His innovative designs focus on improving the efficiency and functionality of fuel cell systems.

Latest Patents

One of Fujiwara's latest patents is a fuel cell stack assembly. This invention features a current collecting equipment designed for a fuel cell assembly, where a current collector, a heat-resisting insulator, and an end plate are sequentially mounted on each end of a fuel cell stack. The current collector consists of multiple current collecting sections arranged with spaces between adjacent sections. Terminals are connected to these sections and are brought out through the end plate. This design may include four current collecting sections, a conductor frame with through holes, and inner terminals connected to each section.

Another notable patent is a manifold device for a fuel cell system. This device comprises a body shell with at least one opening and a closure plate with a protrusive portion, forming a manifold box. Inside the shell, a distribution unit partitions the space into first and second chambers. The unit includes partitioning members and a partitioning plate that creates slit-like gaps. The closure plate's protrusive portion features slit-like blowholes to supply process gas to the fuel cell stack. The partitioning plate is equipped with a distributor and a deflector to manage the gas flow effectively.

Career Highlights

Osamu Fujiwara has built a successful career at Sanyo Electric Co., Ltd., where he has been instrumental in advancing fuel cell technologies. His work has not only contributed to the company's innovation portfolio but has also positioned Sanyo Electric as a leader in the energy sector.

Collaborations

Fujiwara has collaborated with notable colleagues, including Hideo Hagino and Masaru Tsutsumi. These partnerships have fostered a creative environment that encourages the development of cutting-edge technologies in fuel cells.

Conclusion

Osamu Fujiwara's contributions to fuel cell technology exemplify his innovative spirit and dedication to advancing energy solutions. His patents reflect a commitment to improving the efficiency and effectiveness of fuel cell systems, making a significant impact in the field.

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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