Minoru Kuroiwa

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Patents Grantslast 30 patents

Information Patent Grant
Continuous vacuum processing apparatus
- Patent number 5,016,561
- Issue date May 21, 1991
- Hitachi, Ltd.
- Masaie Tokai
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Vertical hydro-hoist with adjustable floats and method of operating...
- Patent number 4,854,783
- Issue date Aug 8, 1989
- Hitachi, Ltd.
- Kenji Uchida
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Apparatus for purifying and dispensing water with stagnation preven...
- Patent number 4,773,993
- Issue date Sep 27, 1988
- Hitachi, Ltd.
- Hiroaki Yoda
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Apparatus for producing ultra-pure water by ion exchange resin
- Patent number 4,698,153
- Issue date Oct 6, 1987
- Hitachi, Ltd.
- Harumi Matsuzaki
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Impurity detector
- Patent number 4,670,137
- Issue date Jun 2, 1987
- Hitachi, Ltd.
- Yasuo Koseki
- G01 - MEASURING TESTING