Hyogo, Japan

Junichi Kawakami

This inventor holds 4 USPTO granted patents. Top assignee: Sumitomo Seika Chemicals Co., Ltd.. Active years: 2014-2019.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Junichi Kawakami. Retrieved from https://idiyas.com/inventor/junichi-kawakami-35t3k8xk

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 3.6

ph-index = 1

Forward Citations = 1(Granted Patents)


Location History:

  • Kako-gun, JP (2017)
  • Hyogo, JP (2014 - 2019)

Company Filing History:


Years Active: 2014-2019

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4 patents (USPTO):Explore Patents

Title: Junichi Kawakami: Innovator in Propane Production and Nitric Oxide Preservation

Introduction

Junichi Kawakami is a notable inventor based in Hyogo, Japan. He has made significant contributions to the fields of chemical engineering and gas production. With a total of 4 patents, Kawakami's work focuses on innovative methods for producing and preserving gases.

Latest Patents

Kawakami's latest patents include a propane production method and a propane production apparatus. This method involves a hydrogenation reaction step where crude propylene and hydrogen are reacted in the presence of a catalyst to produce gaseous crude propane containing impurities. The subsequent impurity removal step effectively eliminates these impurities to yield purified propane. This process includes an adsorptive removal stage that removes water, ethane, and propylene through adsorption treatment. Additionally, a separation removal stage is employed to eliminate hydrogen, oxygen, nitrogen, and methane through partial condensation or distillation.

Another significant patent is a method for preserving the quality of nitric oxide. This method ensures high-purity nitric oxide by inhibiting its disproportionation reaction during transportation in high-pressure gas cylinders. By maintaining the gauge pressure between 1.96 MPa to 3.5 MPa and controlling the exterior surface temperature of the cylinder, the production of nitrous oxide and nitrogen dioxide is minimized.

Career Highlights

Kawakami is currently associated with Sumitomo Seika Chemicals Co., Ltd., where he continues to innovate in the field of chemical production. His expertise and dedication have led to advancements that benefit various industrial applications.

Collaborations

Kawakami has collaborated with notable coworkers, including Shinichi Tai and Akihiro Kuwana. Their combined efforts contribute to the success of their projects and the advancement of their research.

Conclusion

Junichi Kawakami's contributions to propane production and nitric oxide preservation highlight his innovative spirit and commitment to advancing chemical engineering. His patents reflect a deep understanding of gas production processes and their applications in 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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