Inventor
Seiji Kojima
Inventor
Hitachi, JP
Overview
Patents· 37 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G02Bprimary
G02BOptical elements, systems or apparatus17%
A61MDevices for introducing media into, or onto, the body8%
G01DMeasuring not specially adapted for a specific variable8%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests6%
Y10TTechnical subjects covered by former us classification6%
B41MPrinting, duplicating, marking, or copying processes5%
F04BPositive-displacement machines for liquids5%
G01NInvestigating or analysing materials by determining their chemical or physical properties5%
H01SDevices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light5%
B01FMixing, e.g. dissolving, emulsifying or dispersing3%
PatentTitleYear
8,678,667'Optical connector'20148,469,602'Optical fiber connecting part and optical module using the same'20138,469,604'Optical fiber, tape-like optical fiber and optical module using the same'2013D0683705'Guide pin for optical connector'20138,380,028'Composite cable'20138,262,375'Tube pump and rotor for tube pump'20128,235,604'Optical connector and fiber module'20128,213,791'Communication light detecting device'20127,903,695'Optical fiber laser and exciting method using same'20117,903,912'Optical connector'20117,812,934'Physical quantity measuring apparatus'20107,813,386'Optical fiber for an optical fiber laser, method for fabricating the same, and optical fiber laser'20107,771,128'Optical connector'20107,713,036'Roller-type liquid pumping apparatus with improved installation capability'20107,684,449'Optical fiber for fiber laser device and fiber laser device using same'20107,589,312'Physical quantity measuring system with fiber Bragg grating sensor and arrayed waveguide grating'20097,470,888'Damage detection system'20087,459,189'Liquid crystal optical element and process for its production'20087,405,391'Modular sensor for damage detection, manufacturing method, and structural composite material'20087,333,696'Tape-shaped optical fiber cable'20087,037,092'Roller pump with housing having integrated reduction gear housing'20066,776,773'Liquid infusion apparatus'20046,746,173'Universal joint'20046,575,936'Liquid infusion apparatus'20036,498,633'Color liquid crystal display device wherein the color polarizer having wavelength dependence of the polarizing efficiency'20026,474,863'Agitator and fixing device thereof'20026,179,569'Liquid transportation apparatus'20016,120,595'Method of producing activated clay for treating aromatic hydrocarbons'20005,861,949'Atomic absorption spectrophotometer'19995,579,104'Apparatus applied to spectroscopy'19965,479,253'Sample transferring method and apparatus for flame type atomic absorption spectrophotometry'19955,037,674'Method of chemically vapor depositing a thin film of GaAs'19914,798,743'Vapor deposition method for the GaAs thin film'19894,705,700'Chemical vapor deposition method for the thin film of semiconductor'19874,544,604'Heat-sensitive recording paper and filler therefor'19854,509,064'Heat-sensitive recording paper and filler therefor'19854,405,371'Novel clay mineral color developer for pressure sensitive recording paper and process for producing same'1983Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1985Based in Nakajo, JP· patent location history
1987–1991Based in Tokyo, JP· patent location history
1995–1999Based in Otsu, JP· patent location history
2001–2010Patents assigned to JAPAN SERVO (7)· patent assignee history
2001–2012Based in Gunma, JP· patent location history
2008–2013Patents assigned to HITACHI CABLE (14)· patent assignee history
2008–2013Based in Hitachi, JP· patent location history
2012–2014Patents assigned to KOJIMA SEIJI (8)· patent assignee history
2012–2013Patents assigned to SUZUKI KANAKO (5)· patent assignee history
2013–2014Patents assigned to NAMEKAWA YOSHIKAZU (5)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HITACHI CABLE | 14 | 2008–2013 |
| KOJIMA SEIJIself | 8 | 2012–2014 |
| JAPAN SERVO | 7 | 2001–2010 |
| NAMEKAWA YOSHIKAZU | 5 | 2013–2014 |
| SUZUKI KANAKO | 5 | 2012–2013 |
Locations
| Location | Patents | Span |
|---|---|---|
| Hitachi, JP | 16 | 2008–2013 |
| Gunma, JP | 6 | 2001–2012 |
| Otsu, JP | 3 | 1995–1999 |
| Tokyo, JP | 3 | 1987–1991 |
| Nakajo, JP | 2 | 1985 |