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Inventor

Yoshihiro Yamazaki

Inventor
Saitama, JP

Overview

57→
Patents
1983–2020
Patent span
Physics
Primary field (CPC G)

Patents· 57 as inventor

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

G02Bprimary
G02BOptical elements, systems or apparatus49%
H04NPictorial communication, e.g. television9%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients4%
G05BControl or regulating systems in general4%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry3%
C07CAcyclic or carbocyclic compounds3%
C08LCompositions of macromolecular compounds3%
G03BApparatus or arrangements for taking photographs or for projecting or viewing them3%
H01JElectric discharge tubes or discharge lamps3%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution3%
PatentTitleYear
10,839,182Apparatus for reading information20209,873,109Catalysts for thermochemical fuel production and method of producing fuel using thermochemical fuel production20189,822,250'Method for producing polyester resin composition'20177,373,082'Light shielding structure of a zoom lens barrel'20087,361,701'Aliphatic polyester composition, a molded article thereof and a method for controlling biodegradation rate using the same composition'20087,356,251'Assembly-stage focus adjustment mechanism of a zoom lens'20087,341,954'Method and apparatus for determining an operation status of a plasma processing apparatus, program and storage medium storing same'20087,263,463'Prediction apparatus and method for a plasma processing apparatus'2007RE039752'Lens barrier opening/closing device of a movable lens barrel'20077,212,352'Cam mechanism of a lens barrel'20077,139,620'Prediction method and apparatus of a processing result'20067,088,524'Lens barrel having a lens barrier mechanism'20066,993,256'Zoom and focus control method and system'20066,963,455'Lens barrel'20056,956,705'Structure of a lens barrel'20056,954,314'Cam mechanism of a lens barrel'20056,919,995'Light shielding structure of a retractable lens barrel'20056,909,464'Zoom lens and a movable lens hood mounting mechanism of the zoom lens'20056,888,685'Retracting mechanism of a zoom lens barrel'20056,853,500'Retracting mechanism of a zoom lens barrel'20056,819,502'Structure of a zoom lens barrel'20046,813,441'Lens drive system'20046,793,846'Microbicide compositions'20046,788,475'Lens barrel having a lens barrier mechanism'20046,748,358'ELECTRONIC SPEAKING DOCUMENT VIEWER, AUTHORING SYSTEM FOR CREATING AND EDITING ELECTRONIC CONTENTS TO BE REPRODUCED BY THE ELECTRONIC SPEAKING DOCUMENT VIEWER, SEMICONDUCTOR STORAGE CARD AND INFORMATION PROVIDER SERVER'20046,714,731'Zoom and focus control method and system'20046,714,357'Lens drive system'20046,665,129'Lens barrel and a zoom lens barrel'20036,657,794'Movable lens hood mechanism of a zoom lens'20036,643,074'Lens barrel'20036,636,362'Lens barrel'20036,624,955'Lens barrel'20036,597,518'Zoom lens barrel'20036,597,516'Lens frame structure for optical axis adjustment'20036,570,718'Zoom lens having a cam mechanism'20036,549,341'Mechanism for rotating a cam barrel of a zoom lens'20036,520,691'Lens barrier opening/closing device of a movable lens barrel'20036,519,096'Lens barrel'20036,469,840'Cam mechanism for driving a linearly-guided lens'20026,469,841'Lens frame guiding mechanism of a zoom lens'20026,456,445'Zoom lens having a cam mechanism'20026,424,807'Zoom lens assembling mechanism'20026,421,192'Bayonet type fixing device having annular members and a zoom lens having the same'20026,418,826'Apparatus for slicing compression molded product of sheet-shaped material and split knife'20026,221,828'Detergent composition comprising an alkylpolyglycoside, a germicide, and a fatty acid salt'20016,121,406'Mixture of hydrophilic dicyclohexylmethanecarbodiimide'20005,687,007'Image reading device including prevention of thermally induced component dislocation'19975,596,424'Scanning optical system having image forming optical system and reading optical system with at least one common optical component'19975,543,955'Optical scanning system'19965,526,095'Image reading apparatus having variable power optical system including first and second fixed focus lens groups'19965,493,453'Apparatus for installing a curved mirror used in a scanning optical system'19965,412,510'Imaging optical system for compensating change of temperature'19955,027,424'Image reader'19914,974,948'Optical device for varying magification'19904,601,105'Vehicle measuring instrument'19864,595,667'Catalyst for the hydrotreating of heavy hydrocarbon oils'19864,414,607'Solid state electric double layer capacitor'1983

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1990–2002Patents assigned to ASAHI OPTICAL CO LTD (13)· patent assignee history
1990–2007Based in Tokyo, JP· patent location history
2001–2004Patents assigned to KAO CORP (2)· patent assignee history
2001–2004Based in Wakayama, JP· patent location history
2002–2008Based in Saitama, JP· patent location history
2003–2008Patents assigned to PENTAX CORP (27)· patent assignee history
2004–2006Patents assigned to HEWLETT PACKARD DEVELOPMENT CO (2)· patent assignee history
2006–2008Patents assigned to TOKYO ELECTRON LTD (3)· patent assignee history
2006–2008Based in Nirasaki, JP· patent location history
2008–2017Based in Chiba, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
PENTAX CORP272003–2008
ASAHI OPTICAL CO LTD131990–2002
TOKYO ELECTRON LTD32006–2008
HEWLETT PACKARD DEVELOPMENT CO22004–2006
KAO CORP22001–2004
Locations
LocationPatentsSpan
Saitama, JP312002–2008
Tokyo, JP131990–2007
Chiba, JP22008–2017
Nirasaki, JP22006–2008
Wakayama, JP22001–2004