Kazunobu Maruo

This inventor holds 16 USPTO granted patents, plus 1 CIPO patent and 4 EPO patents, primarily in Polyester Resin Composition. Top assignees: Mitsubishi Gas Chemical Company, Inc., Amcol International Corporation. Active years: 1991-2014.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kazunobu Maruo. Retrieved from https://idiyas.com/inventor/kazunobu-maruo

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

Calculating rank

USPTO Granted Patents = 16

% Patents Active = 87.5

CIPO Patents = 1

EPO Patents = 4 (Patent Applications = 1)

Average Co-Inventor Count = 3.6

ph-index = 4

Forward Citations = 46(Granted Patents)

Location History:

Hiratsuka, JP (1991 - 1992)
Saitama, JP (2003)
Kanagawa, JP (2005 - 2014)

Company Filing History:

16 out of 2,308

Mitsubishi Gas Chemical Company, Inc.

patents

2 out of 167

Amcol International Corporation

patents

where one patent can have more than one assignee

Years Active: 1991-2014

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Areas of Expertise:

Multi-Layer Bottle

Polyester Resin Composition

Nanocomposites

Fuel Barrier Structure

Aromatic Polyamide

Polyphenoxy Polymers

Oligomer-Modified Compounds

Thermoplastic Resin

Composite Material

Melt-Processable Copolyesterimide

Intercalates

Shaped Article

16 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 8778470 - Multi-layer bottle (2014-07-15),

2. 8597750 - Polyester resin composition, method for producing same and molded body (2013-12-03),

3. 8171705 - Method for filling into multilayer bottle (2012-05-08),

4. 8124204 - Multi-layered bottle (2012-02-28),

5. 8097315 - Multilayer container (2012-01-17),

6. 7927678 - Multilayer bottle (2011-04-19),

7. 7786189 - Oligomer-modified layered inorganic compounds and their use in nanocomposites (2010-08-31),

8. 7723435 - Fuel barrier single-layered structure and multi-layered shaped article (2010-05-25),

9. 7619024 - Resin compositions, intercalates, nanocomposites and laminates prepared with aromatic polyamide and polyphenoxy polymers (2009-11-17),

10. 7323513 - Fuel barrier thermoplastic resin composition and shaped article (2008-01-29),

11. 7265187 - Process for production of polyamide composite material (2007-09-04),

12. 7053172 - Fuel-barrier polyamide resin and multilayer shaped article (2006-05-30),

13. 6841651 - Polyamide resin (2005-01-11),

14. 6515099 - Shaped article of polyamide resin and production thereof (2003-02-04),

15. 5147962 - Melt-processable copolyesterimide composed of bis-trimellitimide units (1992-09-15),

Title: Kazunobu Maruo: Innovator in Polyester Technology

Introduction

Kazunobu Maruo is a prominent inventor based in Kanagawa, Japan. He has made significant contributions to the field of polyester technology, holding a total of 16 patents. His innovative work focuses on creating advanced materials that enhance product durability and functionality.

Latest Patents

One of Maruo's latest patents is for a multi-layer bottle. This bottle features outermost and innermost layers made primarily of a polyester, with a barrier layer interposed between them. The polyester is a thermoplastic resin derived from a dicarboxylic acid component containing at least 80 mol % of terephthalic acid and a diol component with 80 mol % or more of ethylene glycol. The barrier layer consists of two types of polyamides, which provide excellent resistance to delamination upon impact, allowing for greater design flexibility. Another notable patent involves a polyester resin composition that boasts excellent gas barrier properties, transparency, and mechanical strength. This composition includes a specific polyamide resin and a polyester resin, along with a di- and/or tri-polycarboxylic acid compound, ensuring high performance in various applications.

Career Highlights

Throughout his career, Kazunobu Maruo has worked with notable companies such as Mitsubishi Gas Chemical Company, Inc. and Amcol International Corporation. His experience in these organizations has contributed to his expertise in developing innovative materials and solutions.

Collaborations

Maruo has collaborated with talented individuals in his field, including Jun Mitadera and Tomomichi Kanda. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies.

Conclusion

Kazunobu Maruo's contributions to polyester technology and his impressive portfolio of patents highlight his role as a leading inventor in the industry. His work continues to influence the development of advanced materials that meet modern demands.

Profile summary based on public USPTO records.