OYA Masaru

Affiliation

Faculty of Environment and Information Sciences, Division of Artificial Environment and Information

Job Title

Professor

Date of Birth

1957

Research Fields, Keywords

Environmental Information, Consumer, Washing, Cleaning, Detergent, Surfactant

Mail Address

E-mail address



ORCID  https://orcid.org/0000-0001-8647-3914

写真a

The Best Research Achievement in Research Career 【 display / non-display

  • 【Book】 Basic knowledge of washing, cleaning and detergents  2011.12

    【Published Thesis】 Washing Efficiency Analysis Based on a Concept of Statistical Distribution , Journal of Oleo Science  2006.10

    【Published Thesis】 Decreases in Surface Activities and AquaticToxicities of Linear Alkylbenzene Sulfonate and Alcohol Ethoxylates duringBiodegradation  2010.01

Degree 【 display / non-display

  • Doctor of Philosophy -  Osaka City University

Campus Career 【 display / non-display

  • 2011.04
    -
    Now

    Duty   Yokohama National UniversityFaculty of Environment and Information Sciences   Division of Artificial Environment and Information   Professor  

  • 2008.04
    -
    2011.03

    Duty   Yokohama National UniversityCollege of Education and Human Sciences   Professor  

  • 2007.04
    -
    2008.03

    Duty   Yokohama National UniversityCollege of Education and Human Sciences   Associate Professor  

  • 1997.10
    -
    2007.03

    Duty   Yokohama National UniversityCollege of Education and Human Sciences   Associate Professor  

  • 1990.04
    -
    1997.09

    Duty   Yokohama National UniversityCollege of Education   Associate Professor  

display all >>

External Career 【 display / non-display

  • 1984.04
    -
    1990.03

    Kenmei Women's Junior Collage   Lecturer  

Academic Society Affiliations 【 display / non-display

  • 1982
     
     
     

    Jpn. Res. Assn. Text. End-Uses.

  • 1985
     
     
     

    Japan Oil Chemists' Society

Field of expertise (Grants-in-aid for Scientific Research classification) 【 display / non-display

  • Environmental impact assessment

  • Home economics/Human life

 

Research Career 【 display / non-display

  • The Relation between Physicochemical Property and the Toxity for fishes

    Project Year:  -   

  • Removal Efficiency Analysis Model Considering the Distribution of Adhesion Force of Soil and Removal Action

    Project Year:  -   

  • Analysis on the Consumer Information concerning to the Detergent Issues

    Project Year:  -   

Books 【 display / non-display

  • Environmental Information, Information Literacy for Gloval Environment

    Masaru Oya (Part: Single Work )

    Daigaku Kyoiku press  2013.05 ISBN: 9784864292160

  • Environmental Information for Consumer

    (Part: Single Work )

    2006.03

Papers 【 display / non-display

  • Analysis of Consumer Information on the Natural Cleaning using Beer for a Cleaner and the Experimental Verification

    SAKAMOTO Yuka, OKUMA Toshiki, OYA Masaru

    JOURNAL of the JAPAN RESEARCH ASSOCIATION for TEXTILE END-USES ( The Japan Research Association for Textile End-Uses )  61 ( 1 )   38 - 45   2020

    Joint Work

     View Summary

    <p>"Natural Cleaning" which utilizes natural materials like food ingredients for cleaners is spreading over some consumers. But some unscientific parts are seemed to be included in the information. The purpose of this paper is to clarify the tendency of the information about cleaning with beer as one of alcohol beverages and to verify the contents experimentally. In the information, it is said that the cleaning with beer is effective to remove oily soil and the detergency is caused by alcohol, vitamin, enzyme, protein and so on. Experimental results show that the detergency with beer is greater than that with water, but smaller than that with SDS. The most remarkable point is that cleaning effect with beer is equal to or greater than that with Japanese sake or whisky whose alcoholic concentrations are higher than that of beer. It was indicated that the detergency with beer was caused by joint effect of alcohol and protein, and the main popular vitamin theory for the detergency of cleaning with beer was absolutely denied.</p>

    DOI CiNii

  • Experimental Verification of Consumer Information on Calcium Stain Removal with Citric Acid

    KOMATSU Junko, TAMOGAMI Remi, OYA Masaru

    Journal of Home Economics of Japan ( The Japan Society of Home Economics )  70 ( 10 )   643 - 652   2019

    Joint Work

     View Summary

    <p>  Consumer information on acid cleaning of water stain containing calcium was investigated and the chemical reaction was experimentally verified. The results show that most related consumer information recommended the use of citric acid for water stain removal, but no information referred to precipitation caused by the reaction between citric acid and calcium. Removability of calcium soil with citric acid solution showed the same effectiveness as hydrochloric acid solution and acetic acid solution, but a great amount of precipitation was observed after a long period of mixing citric acid solution with calcium salt. Measurement of pH, Ca concentration (using XRF) and citric acid concentration (using HPLC) indicated that the precipitation is formed by calcium carbonate recrystallization followed by citric ion exchange. This fact indicates invalidity of the so-called "neutralization theory" which is often referred to in consumer information.</p>

    DOI CiNii

  • Dyeing and Finishing / Textile Care (Washing and Cleaning)

    JOURNAL of the JAPAN RESEARCH ASSOCIATION for TEXTILE END-USES ( The Japan Research Association for Textile End-Uses )  60 ( 10 )   815 - 818   2019

    Single Work

    DOI CiNii

  • Transition of Information on Risk of Detergents in China from the 1950s to the 2000s

    Yuko MUTOH, Masashi KOBAYASHI, Masaru OYA

    J. Jpn. Res. Assn. Text. End-Uses. ( Jpn. Res. Assn. Text. End-Uses. )  59 ( 2 )   123 - 130   2018.02  [Refereed]

    Joint Work

    DOI

display all >>

Review Papers 【 display / non-display

  • Issues on Synthetic Detergent and Soap

    Masaru Oya

      58 ( 228 ) 9 - 14   2013.02

    Introduction and explanation (commerce magazine)   Single Work

  • Cleaning Efficiency and Environmental Effect of Sodium Bycarbonate

    Masaru Oya

      57 ( 225 ) 2 - 8   2012.05

    Introduction and explanation (commerce magazine)   Single Work

  • Beacon

      20   75 - 79   1985.03

    Introduction and explanation (bulletin of university, research institution)   Single Work

Academic Awards Received 【 display / non-display

  • Oleoscience Editors' Award

    2008.09    

Grant-in-Aid for Scientific Research 【 display / non-display

  • Grant-in-Aid for Scientific Research(B)

    Project Year: 2017.04  -  2020.03  Investigator(s): Masaru Oya