Inventor

Yoshiatsu Yokoo

Inventor

Saitama, JP

Overview

2000–2007

Patent span

Physics

Primary field (CPC G)

Patents· 13 as inventor

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

G02Bprimary

G02BOptical elements, systems or apparatus54%

C03BManufacture, shaping, or supplementary processes29%

B29CShaping or joining of plastics4%

B29DProducing particular articles from plastics or from substances in a plastic state4%

H04JMultiplex communication4%

Y02PClimate change mitigation technologies in the production or processing of goods4%

PatentTitleYear

7,236,657'Optical switch and optical add/drop multiplexer using the same'2007 7,215,853'Optical module formed on common substrate for branching an optical signal'2007 7,164,817'Optical switch and optical add/drop multiplexer using the same'2007 6,876,789'Optical filtering module and optical devices using such optical filtering module'2005 6,701,041'Optical filter module and optical apparatus using the same'2004 6,507,446'Positioning method of optical element, positioning member of optical element and optical unit, and manufacturing method thereof'2003 6,434,976'Method for manufacturing glass product'2002 6,324,332'Optical fiber fixing member, method of manufacturing the optical fiber fixing member, optical fiber array, and method of manufacturing the optical fiber array'2001 6,240,235'Optical fiber fixing member and method for manufacturing the same'2001 6,231,243'Preform and process for the production thereof'2001 6,156,243'Mold and method of producing the same'2000 6,105,395'Manufacturing method for glass molded products'2000 6,050,110'Method for manufacturing glass product'2000

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2000–2007Patents assigned to HOYA CORP (13)· patent assignee history

2000–2007Based in Saitama, JP· patent location history

2000Based in Hidaki, JP· patent location history

2001Patents assigned to HOYA PREC INC (1)· patent assignee history

2001–2007Based in Hidaka, JP· patent location history

2001Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
HOYA CORP	13	2000–2007
HOYA PREC INC	1	2001

Locations

Location	Patents	Span
Saitama, JP	6	2000–2007
Hidaka, JP	4	2001–2007
Tokyo, JP	2	2001
Hidaki, JP	1	2000