Inventor

Kiyoshi Nagai

Inventor

Cambridge, GB

Overview

40→

Patents

1979–2012

Patent span

Human necessities

Primary field (CPC A)

Patents· 40 as inventor

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

A61Kprimary

A61KPreparations for medical, dental or toiletry purposes15%

C07KPeptides15%

A61PSpecific therapeutic activity of chemical compounds or medicinal preparations7%

C12NMicroorganisms or enzymes7%

H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h105%

G02BOptical elements, systems or apparatus3%

A47JKitchen equipment2%

B23KSoldering or unsoldering2%

G01NInvestigating or analysing materials by determining their chemical or physical properties2%

H01JElectric discharge tubes or discharge lamps2%

PatentTitleYear

8,173,523'Method of removing heavy metal in semiconductor substrate'2012 8,090,544'Method for determining concentration of impurity element'2012 7,767,969'Method and apparatus for measuring spectroscopic absorbance'2010 7,537,194'Flow control valve'2009 6,828,125'DNA encoding fused di-alpha globins and use thereof'2004 6,514,776'Instrument and method for measuring contamination of wafer surface'2003 6,215,941'Optical delay time adjuster and optical time-division multiplexer'2001 6,124,114'Hemoglobins with intersubunit dislufide bonds'2000 6,010,883'Recombinant fusion proteins'2000 5,942,488'Haemoglobin'1999 5,905,415'Distributed constant line coupling with a gap domain'1999 5,844,088'Hemoglobin-like protein comprising genetically fused globin-like polypeptides'1998 5,844,089'Genetically fused globin-like polypeptides having hemoglobin-like activity'1998 5,776,890'Hemoglobins with intersubunit disulfide bonds'1998 5,744,329'DNA encoding fused di-beta globins and production of pseudotetrameric hemoglobin'1998 5,661,124'Blood substitutes'1997 5,563,254'Polynucleotides encoding genetically engineered mutant hemoglobins'1996 5,545,727'DNA encoding fused di-alpha globins and production of pseudotetrameric hemoglobin'1996 5,449,759'Hemoglobins with intersubunit desulfide bonds'1995 5,444,012'Method for manufacturing semiconductor integrated circuit device having a fuse element'1995 5,373,471'Semiconductor memory device having redundancy memory cells for replacing defective'1994 5,115,379'Composite filter and illuminating device'1992 5,084,806'Light emitting display device and stem for light emitting display device'1992 5,055,420'Process for fabricating semiconductor integrated circuit devices'1991 5,028,588'Blood substitutes'1991 4,852,958'Optical matrix switch having optimized crosstalk characteristics and uniform optical output intensity'1989 4,846,542'Optical switch matrix'1989 4,734,383'Fabricating semiconductor devices to prevent alloy spiking'1988 4,662,915'Powder-air separator for use in a powder filling apparatus'1987 4,649,357'Surface-acoustic-wave filter'1987 4,616,902'Composite filter, observation system and filamentary display device'1986 4,527,042'Method and apparatus for vacuum sealing a vacuum container assembly'1985 4,471,206'Method of sealing vacuum bottle evacuation chambers'1984 4,448,809'Method of silver plating stainless steel vacuum bottle surfaces'1984 4,409,770'Vacuum insulation spacer'1983 4,405,875'Hermetically sealed flat-type piezo-electric oscillator assembly'1983 4,358,490'Transparent vacuum insulation plate'1982 4,243,910'Filament support assembly for display device'1981 4,141,641'Optical fiber cathode ray tubes and copy machines using the same'1979 4,141,642'Optical fiber cathode ray tubes and copy machines using the same'1979

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1982–2012Patents assigned to NAGAI KIYOSHI (8)· patent assignee history

1983–1992Based in Saitama-shi, JP· patent location history

1987–2001Patents assigned to OKI ELECTRIC IND CO LTD (5)· patent assignee history

1987–2012Based in Tokyo, JP· patent location history

1988–1995Patents assigned to HITACHI LTD (4)· patent assignee history

1991–2004Based in Cambridge, GB· patent location history

1994–1995Based in Kodaira, JP· patent location history

1995–1998Patents assigned to SOMATOGEN INC (8)· patent assignee history

1999–2004Patents assigned to BAXTER BIOTECH TECH SARL (3)· patent assignee history

2003–2012Based in Kanagawa, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
NAGAI KIYOSHIself	8	1982–2012
SOMATOGEN INC	8	1995–1998
OKI ELECTRIC IND CO LTD	5	1987–2001
HITACHI LTD	4	1988–1995
BAXTER BIOTECH TECH SARL	3	1999–2004

Locations

Location	Patents	Span
Cambridge, GB	13	1991–2004
Tokyo, JP	6	1987–2012
Saitama-shi, JP	3	1983–1992
Kanagawa, JP	2	2003–2012
Kodaira, JP	2	1994–1995