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Kunimasa Muroi

This inventor holds 18 USPTO granted patents and 1 published patent application. Top assignees: Yamaha Corporation, Nippon Gakki Seizo Kabushiki Kaisha. Active years: 1979-2015.

USPTO Granted Patents = 18 (Patent Applications = 1)

% Patents Active = 72.2

Average Co-Inventor Count = 2.5

ph-index = 6

Forward Citations = 150(Granted Patents)

Location History:

Shizuoka, JP (1996 - 1997)
Shizuoka-ken, JP (2004)
Hamamatsu, JP (1979 - 2015)

Company Filing History:

Nippon Gakki Seizo Kabushiki Kaisha

patents

Years Active: 1979-2015

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18 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 8983099 - Electrostatic loudspeaker (2015-03-17),

2. 7252760 - Waste liquid processing method and waste liquid processing apparatus using the same (2007-08-07),

3. 6989343 - Granular photocatalytic material, functional restoration method therefor, and apparatus for decomposing and removing toxic organic matter using the same (2006-01-24),

4. 6914031 - Photocatalyst granules (2005-07-05),

5. 6814875 - Method and device for treating waste liquid, solvent separator, and cleaning device using thereof (2004-11-09),

6. 6471874 - Effluent treating method, an effluent treating apparatus, and a cleaning apparatus using the same (2002-10-29),

7. 6428671 - Method and apparatus for electro-coagulation printing and electrode control unit (2002-08-06),

8. 6386683 - Printing apparatus and printing method therefor (2002-05-14),

9. 6348938 - Electro-coagulation printer (2002-02-19),

10. 6114000 - Material for FRTP molded objects and FRTP tubular molded object (2000-09-05),

11. 5639552 - Stong flexible pre-impregnation of fiber reinforced thermoplastic resin (1997-06-17),

12. 5633074 - Prepreg available for fiber reinforced thermoplastic resin and process (1997-05-27),

13. 5618598 - Strong flexible pre-inpregnation of fiber reinforced thermoplastic resin (1997-04-08),

14. 5520995 - Strong flexible pre-impregnation of fiber reinforced thermoplastic resin (1996-05-28),

15. 4858928 - Racket frame (1989-08-22),

Title: The Innovations of Kunimasa Muroi

Introduction

Kunimasa Muroi is a notable inventor based in Hamamatsu, Japan. He has made significant contributions to the field of electroacoustics and waste liquid processing. With a total of 18 patents to his name, Muroi's work reflects a commitment to innovation and environmental sustainability.

Latest Patents

One of Muroi's latest inventions is an electrostatic loudspeaker. This device features a first electrode with acoustic transmission properties and a second electrode that is oppositely positioned. A vibrating member, which has conductibility, is placed between these electrodes. Additionally, the design includes two elastic members that provide insulation and acoustic transmission properties. Another significant patent is a waste liquid processing method and apparatus. This method involves a series of processes, including solvent separation, vaporization, and photo-oxidative decomposition, aimed at effectively treating chlorine-based organic solvents in waste liquids.

Career Highlights

Throughout his career, Muroi has worked with prominent companies such as Yamaha Corporation and Nippon Gakki Seizo Kabushiki Kaisha. His experience in these organizations has allowed him to develop and refine his innovative ideas, contributing to advancements in technology and environmental practices.

Collaborations

Muroi has collaborated with notable individuals in his field, including Yoichi Nagasaki and Toshiharu Fukushima. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies.

Conclusion

Kunimasa Muroi's contributions to innovation, particularly in electroacoustics and waste processing, highlight his role as a leading inventor. His patents reflect a dedication to improving technology and addressing environmental challenges.

Profile summary based on public USPTO records.

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