LexDanaLexDanabeta
Inventor

Yuji Yamashita

Inventor
Osaka, JP

Overview

65→
Patents
1989–2020
Patent span
Performing operations
Primary field (CPC B)

Patents· 65 as inventor

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

G03Gprimary
G03GElectrography9%
B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form8%
E02FDredging7%
B62DMotor vehicles6%
B29CShaping or joining of plastics6%
B60KArrangement or mounting of propulsion units or of transmissions in vehicles4%
B60YIndexing scheme relating to aspects cross-cutting vehicle technology4%
Y10TTechnical subjects covered by former us classification4%
A47LDomestic washing or cleaning3%
C09KMaterials for miscellaneous applications, not provided for elsewhere3%
PatentTitleYear
10,788,137Pressure regulating valve202010,774,852Hydraulic system for working machine202010,638,908Method and system for manufacturing cleaning member202010,568,484Method for producing cleaning member, and system for producing cleaning member202010,422,108Cabin of working machine and working machine having cabin201910,357,926Metal/CFRP composite structure, and its manufacturing method and apparatus201910,344,452Cabin of working machine and working machine having cabin201910,328,660Composite structure and manufacturing method thereof201910,260,213Working machine201910,241,155Inspection method for all-solid secondary battery and manufacturing method of all-solid secondary battery utilizing the inspection method201910,232,560Composite structure formed of fiber reinforced plastic sheet and metallic sheet, and manufacturing method thereof201910,150,366Work machine with tank supported on bonnet201810,098,516Method for producing cleaning member, and system for producing cleaning member201810,070,765Method for producing cleaning member, and system for producing cleaning member201810,052,842Composite structure and manufacturing method thereof201810,030,362Cabin of working machine, working machine having cabin, and method for manufacturing cabin20189,988,790Working machine20189,919,501'Manufacturing method and manufacturing system for cleaning member'20189,828,744Working machine20179,809,750'Liquid crystal composition'20179,757,882'Method of producing opened fiber bundle, and method of producing cleaning member, apparatus which opens fiber bundle, and system which produces cleaning member'20179,752,302'Working machine'2017D0790598'Skid steer loader'20179,567,729'Working machine'2017D0777801'Air conditioning duct for construction equipment'2017D0771295'Headlight for construction equipment'20169,393,722'Method of production of web member including tow'2016D0761880'Skid steer loader'20169,281,795'Acoustic signal processing apparatus'20169,279,199'Method and apparatus for manufacturing cleaning member'2016D0748563'Cabin for construction equipment'20169,206,534'Method of producing opened fiber bundle, method of producing cleaning member, apparatus which opens fiber bundle, and system which produces cleaning member'20158,627,869'Melt bonding device for sealing belt-shaped sheet'20148,337,964'Liquid crystal composition and liquid crystal display device'20128,303,026'Cabin unit for work machine'20128,038,379'Skid steer loader'20117,989,038'Liquid crystal composition and liquid crystal display device'20117,662,490'Near-infrared shield and display front plate'20106,885,126'Supporting structure for brush mechanism in motor'20056,762,075'Semiconductor module and producing method therefor'20046,603,210'Semiconductor module and producing method therefor'20036,556,182'Liquid crystal display device having an improved video line driver circuit'20036,535,189'Liquid crystal display device having an improved gray-scale voltage generating circuit'20036,532,046'Liquid crystal display material, liquid crystal display method and liquid crystal display device'20036,320,630'Liquid crystal display device having a slim driver chip'20016,211,931'Polymer-dispersed liquid crystal composition and liquid crystal display elements using the composition'20015,873,009'Equipment management system that issues a warning when the lifetime of a component has been exceeded and disables the warning when such a warning is to be generated for a different component'19995,812,874'Equipment management system'19985,805,441'Equipment management system'19985,802,271'Terminal device management system and a method for detecting a failed terminal device using the system'19985,802,429'Copying machine connected to a host computer for storage and retrieval of help information'19985,752,125'Maintenance management system for image forming equipment'19985,752,128'Image forming apparatus with contract renewal device'19985,740,490'Copier management system'19985,708,909'Equipment management system'19985,666,585'Maintenance supervising system for an image-reproducing system'19975,594,529'Imaging device with stock supervision means'19975,591,406'Automatic exhaust gas analyzer for an internal combustion engine'19975,552,860'Monitoring system in auto-restoring image reproducing system'19965,517,282'Management system of image forming apparatuses'19965,486,646'Rhythm creating system for creating a rhythm pattern from specifying input data'19965,369,217'Rhythm creating system for creating a rhythm pattern from specifying input data'19945,343,276'Management system of image forming apparatuses'19944,966,301'Container with an easy open type closure'19904,860,056'Sealable toner recovery box for an image forming machine'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989–1999Patents assigned to MITA INDUSTRIAL CO LTD (14)· patent assignee history
1994–2020Based in Osaka, JP· patent location history
2001–2010Patents assigned to HITACHI MAXELL (5)· patent assignee history
2001–2012Based in Chiba, JP· patent location history
2011–2020Patents assigned to KUBOTA KK (17)· patent assignee history
2011–2018Based in Sakai, JP· patent location history
2014–2020Patents assigned to UNICHARM CORP (9)· patent assignee history
2014–2020Based in Kanonji-shi, JP· patent location history
2018–2019Patents assigned to AISIN TAKAOKA LTD (4)· patent assignee history
2018–2019Based in Toyota, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
KUBOTA KK172011–2020
MITA INDUSTRIAL CO LTD141989–1999
UNICHARM CORP92014–2020
HITACHI MAXELL52001–2010
AISIN TAKAOKA LTD42018–2019
Locations
LocationPatentsSpan
Osaka, JP251994–2020
Kanonji-shi, JP102014–2020
Sakai, JP82011–2018
Chiba, JP52001–2012
Toyota, JP42018–2019