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For the Inventor, By the Inventor

Tokyo, Japan

Masayuki Imafuku

This inventor holds 10 USPTO granted patents. Top assignees: Taisei Corporation, Tokyo Electron Limited, Other. Active years: 1999-2005.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masayuki Imafuku. Retrieved from https://idiyas.com/inventor/masayuki-imafuku

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

USPTO Granted Patents = 10

% Patents Active = 90.0

Average Co-Inventor Count = 3.3

ph-index = 4

Forward Citations = 50(Granted Patents)


Location History:

  • Yokohama, JP (2000 - 2002)
  • Tokyo, JP (1999 - 2005)

Company Filing History:

goldMedal9 out of 81 
 
Taisei Corporation
 patents
silverMedal1 out of 10,904 
 
Tokyo Electron Limited
 patents
bronzeMedal1 out of 834,513 
Other
 patents
where one patent can have more than one assignee

Years Active: 1999-2005

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10 patents (USPTO):Explore Patents
1. 6929985 - Air filter, method of manufacturing air filter, local facility, clean room, treating agent, and method of manufacturing filter medium (2005-08-16),
2. 6613835 - Wet sealing materials and building components useful for clean rooms and local facilities (2003-09-02),
3. 6471740 - Air filter (2002-10-29),
4. 6337365 - Electronic/electric components used in clean room and substrate treatment apparatus (2002-01-08),
5. 6293982 - Air filter, local facility, and clean room (2001-09-25),
6. 6155922 - Building components useful for clean rooms (2000-12-05),
7. 6106586 - Air filter for clean room (2000-08-22),
8. 6077894 - Instrument and mounting equipment used in clean room (2000-06-20),
9. 5997598 - Air filter for clean room (1999-12-07),
10. 5869560 - Sealing materials and building components useful for clean rooms (1999-02-09),

Title: Masayuki Imafuku: Innovator in Air Filtration Technology

Introduction

Masayuki Imafuku is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of air filtration technology, holding a total of 10 patents. His innovative work focuses on creating materials that enhance the cleanliness and efficiency of environments such as clean rooms and semiconductor production facilities.

Latest Patents

Imafuku's latest patents include advancements in air filter technology and methods of manufacturing air filters. One notable patent describes a filter medium that does not release gaseous organic substances during use. This is achieved by utilizing a synthetic paraffin that is free from aliphatic hydrocarbons with 19 carbon atoms or fewer. Additionally, he has developed a treatment agent that incorporates a carboxylic acid ester and a phenolic compound to ensure the filter medium remains free from harmful organic substances. These innovations are particularly beneficial for maintaining the integrity of clean rooms and semiconductor production apparatuses.

Career Highlights

Throughout his career, Masayuki Imafuku has worked with notable companies, including Taisei Corporation. His expertise in air filtration has positioned him as a key figure in the development of materials that are essential for high-tech manufacturing environments. His work has not only advanced the technology but has also contributed to safer and more efficient production processes.

Collaborations

Imafuku has collaborated with several professionals in his field, including Sadao Kobayashi and Yoshihide Wakayama. These collaborations have fostered innovation and have led to the successful development of various air filtration technologies.

Conclusion

Masayuki Imafuku's contributions to air filtration technology have made a significant impact on the industry. His innovative patents and collaborations highlight his dedication to improving the quality of environments critical for semiconductor production and other high-tech applications.

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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