IDiyas

For the Inventor, By the Inventor

Kanagawa, Japan

Etsuko Sugawa

USPTO Granted Patents = 40


Average Co-Inventor Count = 4.8

ph-index = 15

Forward Citations = 441(Granted Patents)


Location History:

  • Machida, JP (1987 - 1989)
  • Kanagawa-ken, JP (2004)
  • Kanagawa, JP (2003 - 2008)
  • Atsugi, JP (1998 - 2010)

Company Filing History:

goldMedal39 out of 90,594 
 
Canon Kabushiki Kaisha
 patents
silverMedal1 out of 1 
 
Canon Kabushiki Kaisha & Raito Kogyo Co., Ltd.
 patent

Years Active: 1987-2010

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40 patents (USPTO):Explore Patents
1. 7682765 - Toner for developing electrostatic images (2010-03-23),
2. 7425432 - Polyhydroxy alkanoate copolymer including within molecule unit having vinyl group or carboxyl group in side chain, and producing method therefor (2008-09-16),
3. 7408017 - Polyhydroxyalkanoate containing unit with phenylsulfanyl structure in the side chain, process for its production, charge control agent, toner binder and toner which contain novel polyhydroxyalkanoate, and image forming method and image-forming apparatus which make use of the toner (2008-08-05),
4. 7135540 - Polyhydroxyalkanoate copolymer including unit having bromo group in side chain and method for producing the same (2006-11-14),
5. 7078200 - Method for manufacturing a polyhydroxyalkanoate (2006-07-18),
6. 7056708 - Method of producing polyhydroxyalkanoate from alkane having residue containing aromatic ring in its molecule (2006-06-06),
7. 7045321 - POLYHYDROXYALKANOATE CONTAINING UNIT WITH PHENYLSULFANYL STRUCTURE IN THE SIDE CHAIN, PROCESS FOR ITS PRODUCTION, CHARGE CONTROL AGENT, TONER BINDER AND TONER WHICH CONTAIN NOVEL POLYHYDROXYALKANOATE, AND IMAGE-FORMING METHOD AND IMAGE-FORMING APPARATUS WHICH MAKE USE OF THE TONER (2006-05-16),
8. 6911521 - Polyhydroxyalkanoate that comprises unit having substituted or unsubstituted (phenylmethyl) sulfanyl structure in side chain thereof and process for producing the same (2005-06-28),
9. 6911520 - Polyhydroxyalkanoate, method of producing the same, charge controlling agent containing polyhydroxyalkanoate, toner binder and toner, and image formation method and image forming apparatus using toner (2005-06-28),
10. 6908721 - POLYHYDROXYALKANOATE HAVING AMIDE GROUP AND SULFONIC GROUP, METHOD OF PRODUCING THE SAME, CHARGE CONTROLLING AGENT CONTAINING NOVEL POLYHYDROXYALAKNAOTE, TONER BINDER, TONER, AND IMAGE FORMING APPARATUS USING THE TONER (2005-06-21),
11. 6908720 - Polyhydroxyalkanoate, its production method, charge control agent containing the polyhydroxyalkanoate, toner binder and toner, and image forming method and image forming apparatus using the toner (2005-06-21),
12. 6872788 - Production method of polyester containing epoxy group in side chain and production method of crosslinked polymer (2005-03-29),
13. 6869782 - Polyhydroxyalkanoate that comprises unit having (methylsulfanyl) phenoxy structure in side chain thereof and process for producing the same (2005-03-22),
14. 6861550 - Polyhydroxyalkanoate containing 3-hydroxybenzoylalkanoic acid as monomer unit, and method for producing the same (2005-03-01),
15. 6861496 - Polyhydroxyalkonoate and method of producing same, and ω-(2-thienylsulfanyl) alkanoic acid and method of producing same (2005-03-01),

Title: Etsuko Sugawa: Innovator in Toner and Biopolymer Technology

Introduction: Etsuko Sugawa, a prominent inventor based in Kanagawa, Japan, holds an impressive portfolio of 40 patents, showcasing his significant contributions to technology and materials science. His innovative spirit has led to advancements in the field of toners for electrostatic imaging and biopolymers, demonstrating his versatility and ingenuity as a researcher.

Latest Patents: Among his latest patents, Sugawa has developed a toner specifically designed for developing electrostatic images. This invention addresses the issue of toner-spent phenomena by selecting constituent materials wherein the charge control resin has hardness comparable to that of the binder resin, as evidenced by analysis using a scanning probe microscope. In addition, he has pioneered a polyhydroxy alkanoate (PHA) copolymer featuring molecular units containing vinyl or carboxyl groups in the side chains. This invention not only includes at least one component derived from a 3-hydroxy-ω-carboxyalkanoic acid but also a biosynthesis method utilizing microorganisms to produce desired PHA copolymers.

Career Highlights: Etsuko Sugawa has established his career within notable companies such as Canon and Canon Raito Kogyo Co., Ltd. His tenure in these organizations has allowed him to develop and refine his inventive technologies, contributing significantly to their research and development efforts in imaging and material sciences.

Collaborations: Throughout his career, Sugawa has collaborated with esteemed colleagues, including Takeshi Imamura and Takashi Kenmoku. These partnerships have been pivotal in enhancing his research capabilities and fostering innovation within his projects.

Conclusion: Etsuko Sugawa exemplifies the essence of innovation through his extensive contributions to toner technology and biopolymer research. His 40 patents not only highlight his technical expertise but also his commitment to advancing materials science. Sugawa's work continues to inspire future inventors and researchers in the field.

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