Inventor

Qichuan YU

Inventor

Overview

7→

Patents

2022–2025

Patent span

Performing operations

Primary field (CPC B)

Patents· 7 as inventor

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

B29Dprimary

B29DProducing particular articles from plastics or from substances in a plastic state19%

G02BOptical elements, systems or apparatus15%

B29CShaping or joining of plastics12%

G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices8%

H01LSemiconductor devices8%

H10FInorganic semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation8%

H10HInorganic light-emitting semiconductor devices having potential barriers8%

B29KIndexing scheme associated with subclasses b29b, b29c or b29d, relating to moulding materials or to materials for moulds, reinforcements, fillers or preformed parts, e.g. inserts4%

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

H01SDevices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light4%

PatentTitleYear

12,346,024Method of manufacturing a master for a replication process2025 12,276,813Method of manufacturing a plurality of optical elements and product thereof2025 12,109,771Manufacture of optical diffusers composed of reflowable materials2024 11,996,505Vacuum injection molding for optoelectronic modules2024 11,554,563Replication and related methods and devices, in particular for minimizing asymmetric form errors2023 11,460,659Optical and optoelectronic assemblies including micro-spacers, and methods of manufacturing the same2022 11,422,291Method for conditioning a replication tool and related method for manufacturing a multitude of devices2022

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2022–2024Patents assigned to AMS SENSORS SINGAPORE PTE LTD (3)· patent assignee history

2022–2023Patents assigned to HEPTAGON MICRO OPTICS PTE LTD (2)· patent assignee history

2022–2025Based in SG· patent location history

2025Patents assigned to AMS OSRAM ASIA PACIFIC PTE LTD (1)· patent assignee history

2025Patents assigned to HEPTAGON PHOTONICS PTE LTD (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
AMS SENSORS SINGAPORE PTE LTD	3	2022–2024
HEPTAGON MICRO OPTICS PTE LTD	2	2022–2023
AMS OSRAM ASIA PACIFIC PTE LTD	1	2025
HEPTAGON PHOTONICS PTE LTD	1	2025

Locations

Location	Patents	Span
SG	7	2022–2025