Inventor

Hiroshi Sugahara

Inventor

Shiga, JP

Overview

28→

Patents

1981–2021

Patent span

Performing operations

Primary field (CPC B)

Patents· 28 as inventor

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

G11Bprimary

G11BInformation storage based on relative movement between record carrier and transducer15%

B29CShaping or joining of plastics11%

F16LPipes11%

B23KSoldering or unsoldering9%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests7%

C22CAlloys5%

Y10TTechnical subjects covered by former us classification5%

B29LIndexing scheme associated with subclass b29c, relating to particular articles4%

B82YSpecific uses or applications of nanostructures4%

H01JElectric discharge tubes or discharge lamps4%

PatentTitleYear

11,027,746Drive mode switching control device, method and program2021 11,015,757Pipe-making apparatus and pipe-making method2021 10,920,918Pipe-making apparatus and pipe-making method for spiral pipe2021 10,870,178Flux-cored wire for arc welding of duplex stainless steel and weld metal2020 10,710,201Ni-based alloy solid wire for welding and Ni-based alloy weld metal2020 D0876001Strip member for pipes2020 10,369,666Stainless steel flux-cored wire2019 9,751,158'Stainless steel flux cored wire'2017 8,939,679'Mobile pipe lining apparatus'2015 8,492,679'Flux-cored wire for stainless steel arc welding'2013 8,347,477'Pipe producing apparatus and existing pipe rehabilitating method employing the same'2013 8,151,827'Method for rehabilitating existing pipe'2012 7,935,266'Wet etching method using ultraviolet-light and method of manufacturing semiconductor device'2011 7,553,471'Method of manufacturing hydrophilic carbon nanotubes'2009 7,186,060'Method and device for lining construction in sewer followed by simultaneous filling of back-fill material'2007 6,600,255'Coil filament structure for an incandescent lamp'2003 6,465,949'Incandescent lamp filament'2002 6,375,533'Electricity lead-in body for bulb and method for manufacturing the same'2002 6,088,179'Method and apparatus for recording and reproducing magnetically, using detection of tunneling current generated by a spin tunnel effect'2000 6,042,765'Method for producing a fiber-reinforced thermoplastic resin foamed product'2000 5,603,814'Magneto-optical disk'1997 5,450,260'Space saving support mechanism for an eccentric drive pin in a rotating disk storage apparatus'1995 5,283,133'Magneto-optical disk'1994 5,270,290'Information recording medium and methods of recording and reproducing information on and from the information recording medium'1993 5,263,779'Thrust ball-bearing'1993 5,197,181'Motor positioning method'1993 5,143,797'Magneto-optic recording medium'1992 4,295,110'Adjusting device for color cathode ray tube'1981

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1981–2000Patents assigned to MITSUBISHI ELECTRIC CORP (6)· patent assignee history

1981–1997Based in Amagasaki, JP· patent location history

1993–2000Based in Tokyo, JP· patent location history

2002–2011Patents assigned to USHIO ELECTRIC INC (5)· patent assignee history

2002–2009Based in Himeji, JP· patent location history

2007–2021Patents assigned to SEKISUI CHEMICAL CO LTD (7)· patent assignee history

2012–2019Patents assigned to SUGAHARA HIROSHI (5)· patent assignee history

2012–2021Based in Shiga, JP· patent location history

2013–2020Patents assigned to KOBE STEEL LTD (5)· patent assignee history

2013–2020Based in Fujisawa, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
SEKISUI CHEMICAL CO LTD	7	2007–2021
MITSUBISHI ELECTRIC CORP	6	1981–2000
KOBE STEEL LTD	5	2013–2020
SUGAHARA HIROSHIself	5	2012–2019
USHIO ELECTRIC INC	5	2002–2011

Locations

Location	Patents	Span
Shiga, JP	5	2012–2021
Fujisawa, JP	5	2013–2020
Amagasaki, JP	5	1981–1997
Himeji, JP	4	2002–2009
Tokyo, JP	4	1993–2000