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SEIWA KAGAKU KK

Overview
  • Total Patents
    45
About

SEIWA KAGAKU KK has a total of 45 patent applications. Its first patent ever was published in 1975. It filed its patents most often in Japan, Netherlands and United States. Its main competitors in its focus markets environmental technology, agriculture and packaging and shipping are SANMEI ELECTRIC CO LTD, BEIJING AGRICULTURE TECHNOLOGY PROMOTION STATION and NASUNIKKUSU KK.

Patent filings in countries

World map showing SEIWA KAGAKU KKs patent filings in countries
# Country Total Patents
#1 Japan 37
#2 Netherlands 3
#3 United States 3
#4 France 1
#5 Italy 1

Patent filings per year

Chart showing SEIWA KAGAKU KKs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Iwamoto Tsuneo 7
#2 Ooya Masataka 5
#3 Oode Takehisa 5
#4 Usui Kiyoshi 4
#5 Nagahama Masahiro 3
#6 Kitamura Shiyuuichi 2
#7 Niihori Kenji 2
#8 Kushibe Hiromoto 2
#9 Suda Hisao 2
#10 Niibori Kenji 2

Latest patents

Publication Filing date Title
JP2002331233A Ozone water making apparatus
JP2001070770A Ozone water generating device
JPS61204000A Method and apparatus for drying futon
JPS61195629A Method and apparatus for feeding culture solution
JPS61181321A Promotion of bud differentiation
JPS60199327A Culture bed and its formation
JPS60180531A Culture bed and formation thereof
JPS60161741A Control of foam life by temperature change and foaming liquid
JPS60141215A Method and member for forming culture bed
JPS60141214A Formation of culture bed
JPS60140094A Underground heat storaging structure and formation thereof
JPS60140095A Underground heat storaging structure and formation thereof
JPS6048105A Process and apparatus for recovering liquid containing foam
JPS59196019A Formation of heat insulating layer
JPS59173023A Defoaming apparatus for greenhouse
US4494707A Apparatus for winding and unwinding an elongated flexible member
JPS596822A Method and apparatus for preserving temperature of greenhouse by partition curtain
JPS58162216A Plant cultivating method and apparatus
JPS5818410A Production of foamed opened fiber from hardly openable thermoplastic synthetic resin
NL8103296A Green house flexible screen opening mechanism - has component attached to free screen end unwinding against spring action