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Inventor

Ryuji Hamada

Inventor
Hamamatsu, JP

Overview

20→
Patents
1997–2020
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 20 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

B63Hprimary
B63HMarine propulsion or steering11%
F01NGas-flow silencers or exhaust apparatus for machines or engines in general11%
H01FMagnets9%
Y10TTechnical subjects covered by former us classification9%
F02BInternal-combustion piston engines6%
H05KPrinted circuits6%
Y02TClimate change mitigation technologies related to transportation6%
B21BRolling of metal4%
C22CAlloys4%
C23CCoating metallic material4%
PatentTitleYear
10,625,321Cooling apparatus and cooling method for steel material202010,059,416Engine for outboard motor20189,982,594Engine for outboard motor20189,938,879Outboard motor20189,909,479'Engine for outboard motor'20189,816,423'Engine for outboard motor'20179,780,514'Component mounting method'20179,664,100'Outboard motor'20178,405,715'Inspection apparatus and inspection method'20138,221,551'Apparatus for producing a reflector'20128,224,063'Inspection apparatus and inspection method'20128,074,351'Part mounting device and part mounting method'20117,438,768'Rare earth element sintered magnet and method for producing rare earth element sintered magnet'20087,156,928'Corrosion-resistant rare earth element magnet'20077,115,009'Outboard motor'20066,777,097'Corrosion resistant rare earth magnet and its preparation'20046,746,545'Preparation of rare earth permanent magnets'20046,224,986'Rare earth permanent magnet of high corrosion resistance'20016,216,505'Method and apparatus for rolling a strip'20015,636,544'Cold rolling method for a metal strip and a mill array'1997

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2001–2008Patents assigned to SHINETSU CHEMICAL CO (5)· patent assignee history
2004–2008Based in Takefu, JP· patent location history
2011–2013Patents assigned to HAMADA RYUJI (4)· patent assignee history
2011–2013Patents assigned to KAMEDA AKIRA (3)· patent assignee history
2011–2013Patents assigned to PANASONIC CORP (3)· patent assignee history
2011–2017Based in Osaka, JP· patent location history
2012Based in Kanagawa, JP· patent location history
2017–2018Patents assigned to SUZUKI MOTOR CORP (6)· patent assignee history
2017–2018Based in Hamamatsu, JP· patent location history
2020Based in Kimitsu, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SUZUKI MOTOR CORP62017–2018
SHINETSU CHEMICAL CO52001–2008
HAMADA RYUJIself42011–2013
KAMEDA AKIRA32011–2013
PANASONIC CORP32011–2013
Locations
LocationPatentsSpan
Hamamatsu, JP62017–2018
Osaka, JP42011–2017
Takefu, JP42004–2008
Kimitsu, JP12020
Kanagawa, JP12012