Inventor

Toshifumi Maehara

Inventor

Saitama, JP

Overview

67→

Patents

1977–2020

Patent span

Performing operations

Primary field (CPC B)

Patents· 67 as inventor

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

B60Tprimary

B60TVehicle brake control systems or parts thereof42%

F16DCouplings for transmitting rotation40%

Y10TTechnical subjects covered by former us classification5%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests4%

B60KArrangement or mounting of propulsion units or of transmissions in vehicles2%

B61HBrakes or other retarding devices specially adapted for rail vehicles2%

F04BPositive-displacement machines for liquids2%

B60RVehicles, vehicle fittings, or vehicle parts, not otherwise provided for1%

F16HGearing1%

PatentTitleYear

10,794,437Wedge cam brake2020 10,527,114Disc brake apparatus2020 10,364,857Disc brake apparatus2019 9,982,731Disc brake apparatus2018 9,920,799'Disk brake device and brake pad for disk brake device'2018 9,488,234'Drum brake apparatus'2016 9,441,694'Friction pad assembly for disk brake'2016 8,869,950'Floating disc brake, method of assembling same, and assemblies consisting of pad clips and return springs'2014 8,573,370'Disk brake device'2013 8,235,189'Drum brake apparatus'2012 7,661,515'Friction member assembly for disc brake'2010 7,490,703'Disc brake actuating apparatus with parking-brake operating mechanism'2009 7,438,160'Floating caliper disc brake'2008 7,178,643'Drum brake apparatus'2007 7,178,645'Brake apparatus having automatic clearance adjusting mechanism with overadjustment preventer'2007 7,070,025'Drum brake apparatus'2006 7,044,275'Drum brake device'2006 6,408,994'Drum brake'2002 6,328,391'Drum brake device'2001 6,321,889'Shoe driving mechanism for drum brake'2001 6,290,036'Drum brake device'2001 6,286,643'Parking brake mechanism in drum brake'2001 6,260,670'Opposed piston type disc brake'2001 6,257,274'Valve opening and closing mechanism'2001 6,186,294'Drum brake'2001 6,131,711'Duo-servo drum brake'2000 6,119,833'Drum brake device having leading/trailing mode and duo servo mode'2000 6,116,702'Device for controlling pressure of brake fluid'2000 6,059,077'Drum brake'2000 5,964,324'Drum brake'1999 5,316,378'Brake fluid pressure control apparatus'1994 5,282,675'Braking anti-lock control for vehicle'1994 5,219,210'Brake fluid pressure controller for vehicle'1993 5,186,002'Fluid operated booster'1993 5,171,072'Brake hydraulic pressure generator'1992 5,098,172'Hydraulic brake pressure generation apparatus for a vehicle'1992 5,080,449'Hydraulic brake pressure controlling apparatus for a vehicle'1992 5,071,201'Brake hydraulic pressure control apparatus'1991 5,069,508'Brake hydraulic pressure control apparatus'1991 5,067,881'Plunger-operated hydraulic pump'1991 5,020,623'Traction control system'1991 4,984,164'Anti-lock control method and apparatus for vehicles'1991 4,967,866'Traction control system for motor vehicles'1990 4,962,824'Traction control system for motor vehicles'1990 4,951,771'Traction control system for automobile'1990 4,922,961'Electromagnetic valve'1990 4,892,468'Hydraulic pump'1990 4,884,492'Hydraulic power booster'1989 4,867,509'Apparatus for controlling brake fluid pressure of vehicle'1989 4,844,555'Anti-lock control device in a 2-channel diagonal brake system'1989 4,741,580'Anti-skid control system for motor vehicle'1988 4,708,407'Anti-lock brake system for vehicle'1987 4,691,969'Antiskid control system'1987 4,640,391'Automatic stop valve device for vehicle brake systems'1987 4,556,260'Apparatus for preventing the locking of a wheel'1985 4,555,145'Anti-lock system for vehicles'1985 4,505,520'Device for preventing vehicle wheels from locking'1985 4,455,831'Differential master cylinder'1984 4,360,237'Deceleration sensing type fluid pressure control device for vehicle brake system'1982 4,335,736'Double piping type hydraulic pressure control device'1982 4,322,114'Hydraulic pressure control device for double hydraulic piping for vehicle brakes'1982 4,294,335'Device for automatically adjusting a braking clearance for a disc brake'1981 4,290,265'Master cylinder device'1981 4,256,206'Disc brake'1981 4,194,792'Deceleration sensing type proportioning valve'1980 4,124,105'Audible alarm sounding type pad clip device for disc brake'1978 4,037,689'Audible alarm sounding type pad clip device for disc brake'1977

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1977–2020Patents assigned to AKEBONO BRAKE IND (66)· patent assignee history

1980–1981Based in Chichibu, JP· patent location history

1982–1990Based in Hanazono, JP· patent location history

1984–2001Based in Saitama, JP· patent location history

1989–1994Patents assigned to AKEBONO RES & DEV CENTRE (13)· patent assignee history

1990–1991Patents assigned to AKEBONO RESEARCH DEV CENTRE LT (2)· patent assignee history

2000–2020Based in Tokyo, JP· patent location history

2007Patents assigned to AKEBONO BRAKE ENDUSTRY CO LTD (1)· patent assignee history

2012–2014Patents assigned to MAEHARA TOSHIFUMI (3)· patent assignee history

2016Based in Chuo-ku, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
AKEBONO BRAKE IND	66	1977–2020
AKEBONO RES & DEV CENTRE	13	1989–1994
MAEHARA TOSHIFUMIself	3	2012–2014
AKEBONO RESEARCH DEV CENTRE LT	2	1990–1991
AKEBONO BRAKE ENDUSTRY CO LTD	1	2007

Locations

Location	Patents	Span
Saitama, JP	25	1984–2001
Tokyo, JP	24	2000–2020
Hanazono, JP	8	1982–1990
Chichibu, JP	4	1980–1981
Chuo-ku, JP	1	2016