Tokyo, Japan

Masaki Iijima

This inventor holds 115 USPTO granted patents and 7 published patent applications, plus 44 CIPO patents and 29 EPO patents, primarily in Carbon Dioxide Recovery (CPC class 423228). Top assignees: Mitsubishi Heavy Industries Limited, The Kansai Electric Power Co., Inc., Mitsubishi Jukogyo Kabushiki Kaisha. Active years: 1994-2019.

USPTO Granted Patents = 115 

% Patents Active = 80.0


 

Average Co-Inventor Count = 2.5

ph-index = 23

Forward Citations = 1,702(Granted Patents)

Forward Citations (Not Self Cited) = 1,602(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Mihara, JP (2007 - 2009)
  • Hiroshima-ken, JP (2009 - 2012)
  • Hiroshima, JP (2009 - 2016)
  • Tokyo, JP (1994 - 2019)

Company Filing History:


Years Active: 1994-2019

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Areas of Expertise:
Carbon Dioxide Recovery
Gasoline Production
Gas Turbine Systems
Flue Gas Treatment
Methanol Synthesis
Air Pollution Control
Natural Gas Reforming
Urea Production
Electricity Generation
Reclaiming Method
Saturator Systems
Combined Cycle Power Plant
115 patents (USPTO):Explore Patents

Title: Innovations and Achievements of Masaki Iijima

Introduction

Masaki Iijima, a prominent inventor based in Tokyo, Japan, has made significant contributions to the field of engineering and energy systems. With an impressive portfolio of 115 patents, his innovative ideas and systems have advanced technology in areas such as gas turbine cycles and energy recovery.

Latest Patents

Among Masaki Iijima's latest patents are groundbreaking technologies focused on improving energy efficiency and gas recovery. One notable invention is the gas turbine cycle equipment, which utilizes a method for recovering exhaust heat from combustion flue gas. In this system, combustion flue gas from a power turbine is used to perform heat exchange with high-pressure secondary compressed air through a first heat exchange unit. The resulting heat-exchanged flue gas then facilitates heat recovery for low-pressure primary compressed air in a second heat exchange unit. Additionally, he developed a system and method for producing gasoline from natural gas via methanol, which efficiently utilizes the reaction heat generated during gasoline synthesis while cooling the synthesis column.

Career Highlights

Masaki Iijima has worked with renowned organizations, including Mitsubishi Heavy Industries Limited and The Kansai Electric Power Co., Inc. His work has continuously aimed at enhancing performance and efficiency in energy sectors, showcasing his inventive prowess and commitment to sustainable technology.

Collaborations

Throughout his career, Iijima has collaborated with esteemed colleagues such as Tomio Mimura and Yasuyuki Yagi. These partnerships have fostered a creative environment, leading to numerous patents that highlight their collective innovative spirit.

Conclusion

Masaki Iijima's extensive body of work illustrates his dedication to innovation in energy technology. His pioneering patents not only address critical issues in energy efficiency but also pave the way for future advancements in the industry. With ongoing contributions to sustainable technology, Iijima remains a key figure in the world of inventions and patent developments.

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