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For the Inventor, By the Inventor

Hiroshima, Japan

Masumi Atsukawa

This inventor holds 12 USPTO granted patents. Top assignee: Mitsubishi Jukogyo Kabushiki Kaisha. Active years: 1977-1983.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masumi Atsukawa. Retrieved from https://idiyas.com/inventor/masumi-atsukawa

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

USPTO Granted Patents = 12

% Patents Active = 100.0

Average Co-Inventor Count = 3.5

ph-index = 7

Forward Citations = 118(Granted Patents)


Location History:

  • Hiroshima, JA (1977 - 1978)
  • Hiroshima, JP (1978 - 1983)

Company Filing History:

goldMedal12 out of 1,326 
 
Mitsubishi Jukogyo Kabushiki Kaisha
 patents

Years Active: 1977-1983

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12 patents (USPTO):Explore Patents
1. 4374812 - Process for stack gas treatment (1983-02-22),
2. 4302431 - Process for controlling nitrogen oxides in exhaust gases and apparatus (1981-11-24),
3. 4282115 - Catalyst for selectively reducing nitrogen oxides from oxygen-containing (1981-08-04),
4. 4186109 - Catalyst for selectively reducing nitrogen oxides from oxygen-containing (1980-01-29),
5. 4166838 - Process for treating exhaust gases (1979-09-04),
6. 4107271 - Wet-treatment of exhaust gases (1978-08-15),
7. 4073864 - Method of desulfurizing exhaust emission using pulverized slag as (1978-02-14),
8. 4067707 - Spray type wet scrubber (1978-01-10),
9. 4040803 - Wet waste flue gas desulfurizing process using lime as absorbent (1977-08-09),
10. 4038368 - Process for removing oxides of nitrogen and sulfur from exhaust gases (1977-07-26),
11. 4038367 - Process for the removal of SO.sub.x and NO.sub.x from waste gases using (1977-07-26),
12. 4009244 - Process for removing oxides of nitrogen and sulfur from exhaust gases (1977-02-22),

Title: Innovations of Masumi Atsukawa

Introduction

Masumi Atsukawa is a prominent inventor based in Hiroshima, Japan. He has made significant contributions to environmental technology, particularly in the treatment of exhaust gases. With a total of 12 patents to his name, Atsukawa's work focuses on innovative processes that aim to reduce harmful emissions.

Latest Patents

One of his latest patents is a process for stack gas treatment. This wet process involves scrubbing stack gas with a suspension containing calcium hydroxide and/or calcium carbonate to remove sulfur oxides. The process is characterized by the supply of air or oxygen-containing gas to oxidize at least 18% of the sulfur oxides absorbed by the scrub liquid into gypsum. Additionally, part of the gypsum is recycled back to the scrubber, enhancing the efficiency of the treatment.

Another notable patent is for controlling nitrogen oxides in exhaust gases. This process involves decomposing nitrogen oxides in the presence of ammonia at high temperatures. A catalyst assembly is strategically arranged to facilitate the decomposition of residual nitrogen oxides and ammonia into harmless substances. The introduction of an additional supply of ammonia accelerates this decomposition, ensuring a more effective treatment of exhaust gases.

Career Highlights

Masumi Atsukawa is currently employed at Mitsubishi Jukogyo Kabushiki Kaisha, where he continues to develop innovative solutions for environmental challenges. His work has garnered attention for its practical applications in reducing industrial emissions.

Collaborations

Atsukawa collaborates with notable colleagues, including Naoharu Shinoda and Toshikuni Sera, who contribute to his research and development efforts. Their combined expertise enhances the effectiveness of the projects they undertake.

Conclusion

Masumi Atsukawa's contributions to environmental technology through his innovative patents demonstrate his commitment to creating a cleaner and more sustainable future. His work continues to influence the field of exhaust gas treatment and showcases the importance of innovation in addressing environmental issues.

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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