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Masahiko Nagai
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Heat exchanger and replacement method of heat exchange core
Patent number
11,635,260
Issue date
Apr 25, 2023
Mitsubishi Heavy Industries, Ltd.
Keisuke Yoshida
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Liquid alkali metal with dispersed nanoparticles and method of manu...
Patent number
8,246,853
Issue date
Aug 21, 2012
Japan Atomic Energy Agency
Kuniaki Ara
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Penholder cap
Patent number
5,316,402
Issue date
May 31, 1994
Tombow Pencil Co., Ltd.
Takeshi Wakai
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Grant
Mechanical marking pen
Patent number
4,969,765
Issue date
Nov 13, 1990
Ogawa Chemical Industries Ltd.
Masahiko Nagai
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Grant
Detachable head member having slit structure
Patent number
4,408,921
Issue date
Oct 11, 1983
Ogawa Chemical Industries, Ltd.
Masahiko Nagai
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Grant
Nib holder construction for writing implements
Patent number
4,357,117
Issue date
Nov 2, 1982
Ogawa Chemical Industries, Ltd.
Masahiko Nagai
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Patents Applications
last 30 patents
Information
Patent Application
HEAT EXCHANGER
Publication number
20230047365
Publication date
Feb 16, 2023
Mitsubishi Heavy Industries, Ltd.
Nobuhide HARA
F28 - HEAT EXCHANGE IN GENERAL
Information
Patent Application
HEAT EXCHANGER AND REPLACEMENT METHOD OF HEAT EXCHANGE CORE
Publication number
20220268527
Publication date
Aug 25, 2022
Mitsubishi Heavy Industries, Ltd.
Keisuke YOSHIDA
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
ACIDIC TREATMENT LIQUID PROCESSING APPARATUS, ACIDIC TREATMENT LIQU...
Publication number
20210339199
Publication date
Nov 4, 2021
Mitsubishi Heavy Industries, Ltd.
Koji IMASAKA
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
ACIDIC TREATMENT LIQUID PROCESSING APPARATUS AND ACIDIC TREATMENT L...
Publication number
20210339198
Publication date
Nov 4, 2021
Mitsubishi Heavy Industries, Ltd.
Hiroaki MIKAWA
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
WATER TREATMENT APPARATUS AND WATER TREATMENT METHOD
Publication number
20170305758
Publication date
Oct 26, 2017
Mitsubishi Heavy Industries, Ltd.
Katsuhiko Yokohama
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
HEAT EXCHANGER
Publication number
20130152585
Publication date
Jun 20, 2013
Mitsubishi Heavy Industries, Ltd.
Satoshi Hiraoka
F28 - HEAT EXCHANGE IN GENERAL
Information
Patent Application
NANOPARTICLE MANUFACTURING DEVICE AND NANOPARTICLE MANUFACTURING ME...
Publication number
20110209578
Publication date
Sep 1, 2011
Kuniaki Ara
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
LIQUID ALKALI METAL WITH DISPERSED NANOPARTICLES AND METHOD OF MANU...
Publication number
20110210285
Publication date
Sep 1, 2011
Kuniaki ARA
B22 - CASTING POWDER METALLURGY