Hiroshima Institute of Technology

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HAMASAKI Toshihiko

Profile Research field Research achievement

 

Reports
No.Title URL, Journal, Vol( No), Start Page- End Page, Publication date 
1
Analysis of intermodulation distortion in triode tube amplifiers , , ECT-22( 049), 1- 6, Sep. 29, 2022 
2
Analysis of amplification factor dispersion of miniature triode vacuum tubes based on high-precision physical model parameters , , ECT-22( 035), 1- 4, Jun. 9, 2022 
3
Automatic Parameter Extraction Method of High-Precision Physical Model in Triode Based on Operating Principle , , ECT-22( 005), 25- 30, Jan. 21, 2022 

 

Academic papers
No.Title URL, Journal, Vol( No), Start Page- End Page, Publication date, DOI 
1
Optimal Extraction and Statistical Analysis of Physical Model Parameters for Nonlinear Properties of Triode Vacuum Tubes , IEEJ Transactions on Electronics, Information and Systems, 143( 1), 1- 14, Jan. 1, 2023,  10.1541/ieejeiss.143.1 
2
Intermodulation Distortion Analysis of a Guitar Distortion Pedal With a Starving Circuit , Journal of Audio Engineering Society, vol.69( no 1/2), 80- 103, Jan. 2021, https://doi.org/10.17743/jaes.2020.0068 
3
Statistical analysis of manufacturer difference for miniature triode tube characteristics based on physical model parameters  , IEEJ Transactions on Electronics, Information and Systems, 140( (1)), 1- 8, Jan. 1, 2020, 10.1541/ieejfms.140.1 of IEEJ 
4
High Precision Model of Small Triode Tube Considering Grid-Bias Positive/Negative Transition State , IEEJ Transactions on Electronics, Information and Systems, 139( (1)), 18- 28, Jan. 1, 2019, 10.1541/ieejeiss.139.19 
5
Physically Based Unified Modeling for a Series of Miniature Twin Triode Tubes , Journal of Audio Engineering Society, 66( (10)), 1- 15, Oct. 2018,  
6
SPICE Modeling of Miniature Dual Triode Vacuum Tube for Audio Application , IEEJ Transactions on Electronics, Information and Systems, 138( (1)), 18- 28, Jan. 1, 2018, 10.1541/ieejeiss.138.18 
7
Power management of autonomous wireless sensor node for structure health monitoring , Analog Integrated Circuits and Signal Processing, 75( (2)), 217- 224, May. 2013, https://doi.org/10.1007/s10470-012-9932-6 
8
A 3-V 22-mW Multibit Current-Mode SD DAC with 100dB Dynamic Range , IEEE J. Solid State Circuits, 31( (12)), 1888- 1894, Dec. 1996,  
9
A Physically Based Base Pushout Model for Submicronmeter BJT’s in the Presence of Velocity Overshoot , IEEE Trans. On Electron Devices, 39( (2)), 396- 403, Feb. 1992,  
10
Low-Temperature (77k) BJT Model with Temperature Dependence on the Injected Condition and Base Resistance , IEEE Transactions on Electron Devices, 37( 7), 1688- 1697, Jul. 1990,  
11
Josephson Effect in Wide Superconducting Bridges Made by Epitaxial Ba2YCu3Ox Thin Films on YSZ/Si(100) , Jpn. J. Appl. Phys., 28(12),  L2213- 2215, Dec. 1989,  
12
Lateral Scaling Effect on High-Current Transients in Submicronmeter Bipolar Transisotrs , IEEE Trans. On Electron Devices, 35( 10), 1621- 1626, Oct. 1988,  
13
Effect of interfacial oxide on solid-phase epitaxy of Si films deposited on Si Substrates , J. of Appl. Phys., 63(4),  1065- 1069, Feb. 15, 1988,  
14
Multilevel construction of seeded-laterally epitaxial silicon films on insulator , J. of Appl. Phys., 62( (1)), 126- 130, Jul. 1, 1987,  
15
Direct observation of growth front movement in electron beam recrystallization of silicon layer on insulator , Appl. Phys. Lett., 50( (15)), 971- 973, Apr. 13, 1987,  
16
Highly controllable pseudoline electron-beam recrystallization of silicon on insulator , J. of Appl. Phys., 59( (8)), 2971- 2976, Apr. 15, 1986,  
17
Seeding lateral epitaxy of silicon on insulator with improved seed and cap structure by pseudoline shaped electron beam annealing , Appl. Phys. Lett., 47( (7)), 696- 699, Oct. 1, 1985,  
18
Two-Phase Structure of a-Si1-xNx:H Fabricated by Microwave Glow-Discharge Technique , Jpn. J. Appl. Phys., 24(1),  19- 23, Jan. 1985,  
19
New mode of plasma deposition in a capacitively coupled reactor , Appl. Phys. Lett., 44( 11), 1049- 1051, Jun. 1984,  
20
Growth and Characterization of Hydrogenated Amorphous Silicon , , ,  1- 145, Mar. 30, 1984,  
21
High-rate deposition of amorphous hydrogenated silicon film from a SiH4 Plasma , Appl. Phys. Lett., 44( 6), 600- 602, Mar. 1984,  
22
Effect of Annealing on Hydrogenated Amorphous Silicon Prepared at High Deposition Rate , Jpn. J. Appl. Phys., 23( 2), L81- 82, Feb. 1984,  
23
Preferential Segregation of Dopant in uc-Si:H , Journal of Non-Crystalline Solids, 59&60,  811- 814, Dec. 1983,  
24
Growth Kinetics of Amorphous Hydrogenated Silicon Studied by Pulsed RF Discharge , Journal of Non-Crystalline Solids, 59&60,  679- 682, Dec. 1983,  
25
Plasma Diagnostic During the Growth of a-Si:H , Journal de Physique, C4,  807- 810, Oct. 1981,  
26
Nucleation of Microcrystallites in Phosphorus-Doped Si:H Filmes , Jpn. J. Appl. Phys., 20(2),  L121- 123, Feb. 1981,  
27
A New Technique of Boron Doping in Si:H Films , Jpn. J. Appl. Phys., 20( 2), L84- 86, Feb. 1981,  
28
Low temperature crystallization of doped a-Si:H alloys , Appl. Phys. Lett., 37( 12), 1084- 1086, Dec. 5, 1980,  
29
Novel effects of magnetic field on the silane glow discharge , Appl. Phys. Lett., 37 (9),  787- 788, Nov. 1, 1980,  

 

Conference Activities & Talks
No.Title, URL, Presentation date, Vol( No), Start Page- End Page, Publication date 
1
Analysis and Modeling of the Guitar Preamplifier Transfer Function Difference between Triode 5751 and ECC83S, , May. 13, 2023, ,  1- 8, May. 13, 2023 
2
Image Processing Method Using Visible Light Spectrum for Estimating Chlorophyll Concentration for Oyster Farming Support IoT, , Mar. 7, 2023, ,  1- 1, Mar. 7, 2023 
3
Analysis of Sea Area Dependence and Seasonal Variation of Chlorophyll Concentration for Oyster Farming Support IoT, , Mar. 7, 2023, ,  1- 1, Mar. 7, 2023 
4
Analysis of dispersion and seasonal variation of chlorophyll concentration measured by fluorescence measurement method in Hiroshima Bay, , Jul. 9, 2022, ,  1- 4, Jul. 9, 2022 
5
Comparison of medium-range radio propagation between sea and urban areas using Low Power Wide Area wireless communication system, , Jul. 9, 2022, ,  1- 4, Jul. 9, 2022 
6
Diffraction Effects of Islands on Over-the-horizon Propagation of Low Power Wide Area System, , Dec. 4, 2021, ,  1- 2, Dec. 4, 2021 
7
Analysis of a Sub-GHz-Band Diffraction Propagation Model for Maritime Application , , Aug. 9, 2021, ,  8- 10, Aug. 9, 2021 
8
Support Application for Configuring Optimal Relay Nodes in Wireless Sensor Networks, , Jan. 17, 2021, ,  1- 4, Jan. 17, 2021 
9
Applicability Analysis of the Combination of Career Anchors and Big-Five Personality for Student Career Development, , Dec. 8, 2020, ,  831- 834, Mar. 8, 2021 
10
Analysis of Sub-Giga Band Propagation for Maritime Low Power Wide Area Application, , Sep. 4, 2020, ,  1- 3, Oct. 16, 2020 
11
Long Distance Propagation Characteristics on the Sea Using a 20 mW 920 MHz Wireless System, , Jul. 2020, ,  1- 2, Jul. 5, 2020 
12
Analysis of the Nonlinear Transfer Functions of a Guitar-Effect-Pedal with a Starving Circuit, , Jun. 2, 2020, ,  1- 8, Jun. 2, 2020 
13
2.4 GHz RF Propagation Measurements and Modeling in A Paddy Field for A Wireless Sensor Network, , Sep. 12, 2019, ,  1- 2, Sep. 12, 2019 
14
Propagation Characteristics of A 2.4GHz Wireless Sensor Module with A Pattern Antenna in Forestry and Agriculture Field, , Aug. 28, 2019, ,  1- 6, Aug. 28, 2019 
15
Statistical analysis of audio triode tube properties based on an advanced physical device model, , Mar. 23, 2019, ,  1- 6, Mar. 23, 2019 
16
Vegetation effect in paddy field for a wireless sensor network, , Jul. 11, 2018, ,  113- 114, Jul. 11, 2018 
17
Harmonics and Intermodulation distortion analysis of the even-order nonlinearity controlled effector pedal, , May. 23, 2018, 144,  1- 7, May. 23, 2018 
18
An even-order harmonics control technique for analog pedal effector, , Oct. 19, 2017, 143,  1- 10, Oct. 19, 2017 
19
Unified modeling for series of miniature twin triode tube, , Oct. 19, 2017, 143,  1- 10, Oct. 19, 2017 
20
Near earth propagation loss model in forest for low power wireless sensor network, , Jul. 10, 2017, ,  19- 20, Jul. 10, 2017 
21
Self-calibrated analog-front-end circuitry for ultra-low power strain sensors, , Jun. 23, 2017, ,  114- 118, Jun. 23, 2017 
22
Supply voltage scaling technique of triode tube based on harmonic distortion characteristics, , May. 21, 2017, 142,  1- 9, May. 21, 2017 
23
Precision harmonics simulation for vacuum-tube electric-guitar pedals and preamplifiers, , Nov. 29, 2016, 140( 4), 3037- 3037, Oct. 2016 
24
Physically-based large-signal modeling for miniature type dual triode tube, , Jun. 4, 2016, 140,  1- 7, Jun. 4, 2016 
25
Study of reliable networking for short-range autonomous, , Aug. 28, 2015, ,  214- 217, Aug. 28, 2015 
26
Learning About Harmonics by Means of a Vacuum Tube Guitar Amplifier, , Jul. 27, 2013, ,  1- 5, Jul. 27, 2013 
27
Challenge of 24bit-class Analog in Audio DAC, , Aug. 14, 2012, ,  1- 5, Aug. 14, 2012 
28
A Single-Chip Audio System with Delta-Sigma DAC and Class-D Amplifier, , Jun. 2006, ,  5740- 5743, Jun. 2006 
29
A Digital Input Controller for Audio Class-D Amplifiers with 100W 0.004% THD+N and 113dB DR, , Feb. 2006, ,  1- 3, Feb. 2006 
30
A 106dB audio digital-to-analog converter employing segment flipping technology combined with cascaded dynamic element matching, , Jun. 2005, ,  174- 175, Jun. 2005 
31
A Class-D amplifier using a spectrum shaping technique, , Jul. 2004, ,  173- 176, Jul. 2004 
32
A 117dB D-Range Current-mode Multi-bit Audio DAC for PCM and DSD Audio Playback, , Sep. 22, 2000, ,  1- 12, Sep. 22, 2000 
33
A 3V 22mW Multi-bit Current-Mode SD DAC with 100db Dynamic Range, , Feb. 1996, ,  234- 235, Feb. 1996 
34
Speed Advantage of Deep Sub-Micron BiNMOS Gate Over CMOS at Liquid Nitrogen Temperature, , Aug. 1991, ,  162- 165, Sep. 1991 
35
New Concept of Collector Design for 0.35um BiCMOS Driver Based on a Base Pushout Model In the Presence of Velocity Overshoot, , Dec. 9, 1990, ,  369- 372, Dec. 9, 1990 
36
Collector Profile Design for High-Performance Dynamic Operation of Bipolar Transistors at Liquid Nitrogen Temperature, , Aug. 22, 1990, ,  821- 824, Aug. 22, 1990 
37
Josephson Effect in As-Grown Ba2YCu3Ox Thin Films on Y2O3/YSZ/Si(100), , Aug. 22, 1990, ,  570- 580, Aug. 22, 1990 
38
Josephson Effect in Epitaxial Ba2YCu3Ox Thin Films on ZrO2/Si, , Nov. 1989, ,  1013- 1016, Nov. 1989 
39
A Two-Dimensional Analysis of Output Overshoot Mechanism in DAC Current Switch, , Oct. 1989, ,  148- 151, Sep. 1989 
40
Analysis of Two-Dimensional Effects on Switching Delay Time for Emitter Coupled Logic Circuits, , Aug. 24, 1988, ,  137- 140, Aug. 24, 1988 
41
Investigation on Microarea Stess in Silicon by Microprobe Raman Spectroscopy, , Aug. 1986, ,  415- 418, Aug. 1986 
42
Multi-Level SOI Recrystallization Using a Novel Seed Structure, , Aug. 1986, ,  569- 572, Aug. 1986 
43
Amplitude Modulated Pseudo-Line Electron Beam Recrystallization for Large Area SOI Growth, , Aug. 1985, ,  135- 138, Aug. 1985 
44
A New Mode of Plasma Deposition in a Cylindrical Drum Type Reactor, , Aug. 1984, ,  543- 546, Aug. 1984 
45
High-Rate Deposition of a-Si*H Using SiH4, , Aug. 1983, ,  193- 196, Aug. 1983 
46
Growth Kinetics of Amorphous Hydrogenated Silicon, , Jun. 1983, ,  1403- 1406, Jun. 1983 
47
Decomposition Kinetics of Silane Studied by In-situ Infrared Absorption and Optical Emission Spectroscopy, , Nov. 26, 1982, ,  432- 438, Nov. 26, 1982 
48
Infrared Spectroscopy of SiH4 Plasma, , Jun. 7, 1982, ,  263- 266, Jun. 7, 1982 
49
Diagnostic of SiH4 Plasma, , Jun. 1981, ,  1- 4, Jun. 1981 
50
Novel Deposition Technique of a-Si-H, Silane Glow Discharge in Magnetic Field, , Aug. 1980, ,  281- 285, Aug. 1980 
51
Chemistry of The Silane Glow Discharge, , Jun. 1980, ,  1- 4, Jun. 1980