Inventor

Seiji Kamada

Inventor

Chigasaki, JP

Overview

19→

Patents

1995–2017

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.

E02Fprimary

E02FDredging12%

F15BSystems acting by means of fluids in general6%

G06FElectric digital data processing6%

G08GTraffic control systems6%

H03MCoding6%

B06BMethods or apparatus for generating or transmitting mechanical vibrations of infrasonic, sonic, or ultrasonic frequency, e.g. for performing mechanical work in general4%

B60RVehicles, vehicle fittings, or vehicle parts, not otherwise provided for4%

G07CTime or attendance registers4%

G08CTransmission systems for measured values, control or similar signals4%

H03KPulse technique4%

PatentTitleYear

9,792,737'Construction machine and operation state management system for the same'2017 9,284,720'Guidance output device and guidance output method'2016 9,124,247'Semiconductor device including a decimation filter that performs predetermined filtering'2015 8,959,893'Guidance output device, guidance output method, and construction machine equipped with guidance output device'2015 7,665,484'Fluid coupling'2010 7,607,414'Member for internal combustion engine and production method thereof'2009 7,283,810'Communication device of mobile unit'2007 7,149,530'Device for presenting information to mobile'2006 7,110,728'Mobile body communication device'2006 6,856,879'Work machine management device'2005 6,630,747'Connector and control pattern change device, data change device and failed area determination device using this connector'2003 6,438,953'Control device for hydraulic drive machine'2002 6,308,516'Control device for hydraulically-operated equipment'2001 6,173,573'Control device for hydraulic drive machine'2001 5,524,087'Method of forming a signal wave from first and second waveform data'1996 5,517,647'Communication control system and information processing system'1996 5,446,981'Method of selecting automatic operation mode of working machine'1995 5,418,734'Finely adjustable signal wave forming circuit including complementary clock signal counters'1995 5,379,325'Clock generating apparatus, data transmitting/receiving apparatus and data transmitting/receiving method'1995

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1995–2017Patents assigned to KOMATSU MFG CO LTD (12)· patent assignee history

1995–1996Patents assigned to HITACHI LTD (4)· patent assignee history

1995–2003Based in Hiratsuka, JP· patent location history

1995–1996Based in Hitachi, JP· patent location history

2005–2017Based in Chigasaki, JP· patent location history

2009–2010Patents assigned to NISSAN MOTOR (2)· patent assignee history

2009–2010Based in Yokohama, JP· patent location history

2015–2016Patents assigned to KAMADA SEIJI (3)· patent assignee history

2015–2016Patents assigned to TAJIMA KENTAROU (2)· patent assignee history

2015–2016Based in Kanagawa, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
KOMATSU MFG CO LTD	12	1995–2017
HITACHI LTD	4	1995–1996
KAMADA SEIJIself	3	2015–2016
NISSAN MOTOR	2	2009–2010
TAJIMA KENTAROU	2	2015–2016

Locations

Location	Patents	Span
Chigasaki, JP	5	2005–2017
Hiratsuka, JP	5	1995–2003
Hitachi, JP	4	1995–1996
Kanagawa, JP	3	2015–2016
Yokohama, JP	2	2009–2010