Inventor

MASASHI YAMASHITA

Inventor
JP

Overview

19→
Patents
2021–2025
Patent span
Physics
Primary field (CPC G)

Patents· 19 as inventor

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

G02Bprimary
G02BOptical elements, systems or apparatus47%
F16KValves7%
B60KArrangement or mounting of propulsion units or of transmissions in vehicles3%
B60WConjoint control of vehicle sub-units of different type or different function3%
B60YIndexing scheme relating to aspects cross-cutting vehicle technology3%
C08JWorking-up3%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients3%
C08LCompositions of macromolecular compounds3%
F01PCooling of machines or engines in general3%
F02BInternal-combustion piston engines3%
PatentTitleYear
12,461,350Optical system, optical apparatus and method for manufacturing the optical system, and zoom optical system, optical apparatus and method for manufacturing the zoom optical system202512,399,353Optical system, optical apparatus and method for manufacturing the optical system202512,398,824Valve gear202512,366,729Optical system, optical apparatus, and method for manufacturing optical system202512,313,826Optical system, optical apparatus and method for manufacturing the optical system, and zoom optical system, optical apparatus and method for manufacturing the zoom optical system202512,298,485Variable magnification optical system, optical device, and method for producing variable magnification optical system202512,222,478Optical system, optical apparatus and method for manufacturing the optical system202512,072,476Optical system, optical apparatus, and method of manufacturing optical system202412,061,324Optical system, optical apparatus and method for manufacturing the optical system202411,971,540Optical system, optical apparatus, and method of manufacturing optical system202411,892,610Variable magnification optical system, optical device, and method for producing variable magnification optical system202411,835,921Carrier and two-component developer202311,782,250Zooming optical system, optical apparatus and method for manufacturing zooming optical system202311,754,195Flow channel switching valve202311,686,926Optical system, optical apparatus, and method of manufacturing optical system202311,643,538Thermoplastic elastomer composition, foam particle, and foam molded body202311,555,983Light source module202311,274,745Wheel loader202211,150,385Optical system, optical device comprising optical system, and method for manufacturing optical system2021

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2021–2025Patents assigned to NIKON CORP (13)· patent assignee history
2021–2025Based in JP· patent location history
2022Patents assigned to HITACHI CONSTRUCTION MACH CO (1)· patent assignee history
2023–2025Patents assigned to FUJIKOKI CORP (2)· patent assignee history
2023Patents assigned to DENSO CORP (1)· patent assignee history
2023Patents assigned to HITACHI LG DATA STORAGE INC (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
NIKON CORP132021–2025
FUJIKOKI CORP22023–2025
DENSO CORP12023
HITACHI CONSTRUCTION MACH CO12022
HITACHI LG DATA STORAGE INC12023
Locations
LocationPatentsSpan
JP192021–2025